/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-44898dd [2022-02-15 11:25:07,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 11:25:07,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 11:25:07,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 11:25:07,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 11:25:07,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 11:25:07,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 11:25:07,140 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 [2022-02-15 11:25:07,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 11:25:07,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 11:25:07,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 11:25:07,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 11:25:07,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 11:25:07,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 11:25:07,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 11:25:07,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 11:25:07,170 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 11:25:07,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 11:25:07,171 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 11:25:07,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 11:25:07,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 11:25:07,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 11:25:07,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 11:25:07,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 11:25:07,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:25:07,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 11:25:07,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 11:25:07,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 11:25:07,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 11:25:07,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 11:25:07,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 11:25:07,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 11:25:07,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 11:25:07,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 11:25:07,404 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 11:25:07,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-02-15 11:25:07,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d795ff9/4786d7a6b9324e2692111932a801f1d3/FLAG96610280f [2022-02-15 11:25:07,851 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 11:25:07,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-02-15 11:25:07,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d795ff9/4786d7a6b9324e2692111932a801f1d3/FLAG96610280f [2022-02-15 11:25:08,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8d795ff9/4786d7a6b9324e2692111932a801f1d3 [2022-02-15 11:25:08,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 11:25:08,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 11:25:08,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 11:25:08,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 11:25:08,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 11:25:08,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396dbd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08, skipping insertion in model container [2022-02-15 11:25:08,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 11:25:08,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 11:25:08,450 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] [2022-02-15 11:25:08,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:25:08,467 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 11:25:08,487 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] [2022-02-15 11:25:08,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 11:25:08,503 INFO L208 MainTranslator]: Completed translation [2022-02-15 11:25:08,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08 WrapperNode [2022-02-15 11:25:08,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 11:25:08,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 11:25:08,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 11:25:08,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 11:25:08,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,560 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 158 [2022-02-15 11:25:08,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 11:25:08,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 11:25:08,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 11:25:08,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 11:25:08,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 11:25:08,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 11:25:08,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 11:25:08,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 11:25:08,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (1/1) ... [2022-02-15 11:25:08,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 11:25:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 11:25:08,644 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) [2022-02-15 11:25:08,669 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 [2022-02-15 11:25:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 11:25:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-15 11:25:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-15 11:25:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-15 11:25:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-15 11:25:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 11:25:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 11:25:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 11:25:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 11:25:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 11:25:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 11:25:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 11:25:08,694 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 11:25:08,808 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 11:25:08,809 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 11:25:09,120 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 11:25:09,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 11:25:09,132 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 11:25:09,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:25:09 BoogieIcfgContainer [2022-02-15 11:25:09,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 11:25:09,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 11:25:09,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 11:25:09,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 11:25:09,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:25:08" (1/3) ... [2022-02-15 11:25:09,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7179a30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:25:09, skipping insertion in model container [2022-02-15 11:25:09,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:25:08" (2/3) ... [2022-02-15 11:25:09,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7179a30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:25:09, skipping insertion in model container [2022-02-15 11:25:09,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:25:09" (3/3) ... [2022-02-15 11:25:09,143 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-02-15 11:25:09,147 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 11:25:09,147 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 11:25:09,147 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 11:25:09,147 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 11:25:09,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,225 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,226 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,227 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,231 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,239 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,241 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,255 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,255 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,256 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,256 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,256 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,256 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,257 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,257 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,257 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,258 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,258 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,258 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,258 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,259 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,260 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,261 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,262 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,263 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,264 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,265 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,266 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,291 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,292 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,295 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,295 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,296 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,296 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,296 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,296 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 11:25:09,303 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-15 11:25:09,351 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 11:25:09,357 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 [2022-02-15 11:25:09,357 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-15 11:25:09,373 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 198 places, 210 transitions, 436 flow [2022-02-15 11:25:09,739 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) [2022-02-15 11:25:09,793 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) [2022-02-15 11:25:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:09,937 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:09,938 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] [2022-02-15 11:25:09,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:09,963 INFO L85 PathProgramCache]: Analyzing trace with hash 997613538, now seen corresponding path program 1 times [2022-02-15 11:25:09,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:09,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73895821] [2022-02-15 11:25:09,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:09,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:10,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:10,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73895821] [2022-02-15 11:25:10,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73895821] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:10,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:10,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:10,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207729046] [2022-02-15 11:25:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:10,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:10,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:10,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:10,516 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) [2022-02-15 11:25:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:11,071 INFO L93 Difference]: Finished difference Result 17273 states and 48971 transitions. [2022-02-15 11:25:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 11:25:11,073 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 [2022-02-15 11:25:11,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:11,172 INFO L225 Difference]: With dead ends: 17273 [2022-02-15 11:25:11,172 INFO L226 Difference]: Without dead ends: 15483 [2022-02-15 11:25:11,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:25:11,177 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:11,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2935 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-02-15 11:25:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 11190. [2022-02-15 11:25:11,643 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) [2022-02-15 11:25:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 32417 transitions. [2022-02-15 11:25:11,701 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 32417 transitions. Word has length 101 [2022-02-15 11:25:11,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:11,702 INFO L470 AbstractCegarLoop]: Abstraction has 11190 states and 32417 transitions. [2022-02-15 11:25:11,703 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) [2022-02-15 11:25:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 32417 transitions. [2022-02-15 11:25:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:11,736 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:11,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:11,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 11:25:11,737 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:11,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 672990146, now seen corresponding path program 1 times [2022-02-15 11:25:11,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:11,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765656341] [2022-02-15 11:25:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:11,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:11,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:11,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765656341] [2022-02-15 11:25:11,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765656341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:11,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:11,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:11,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942487513] [2022-02-15 11:25:11,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:11,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:11,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:11,845 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) [2022-02-15 11:25:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:12,025 INFO L93 Difference]: Finished difference Result 15448 states and 43794 transitions. [2022-02-15 11:25:12,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:12,025 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 [2022-02-15 11:25:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:12,080 INFO L225 Difference]: With dead ends: 15448 [2022-02-15 11:25:12,080 INFO L226 Difference]: Without dead ends: 15393 [2022-02-15 11:25:12,080 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 [2022-02-15 11:25:12,082 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 [2022-02-15 11:25:12,082 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] [2022-02-15 11:25:12,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15393 states. [2022-02-15 11:25:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15393 to 11390. [2022-02-15 11:25:12,455 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) [2022-02-15 11:25:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 32799 transitions. [2022-02-15 11:25:12,493 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 32799 transitions. Word has length 101 [2022-02-15 11:25:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:12,495 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 32799 transitions. [2022-02-15 11:25:12,495 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) [2022-02-15 11:25:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 32799 transitions. [2022-02-15 11:25:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:12,528 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:12,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:12,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 11:25:12,529 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:12,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1130247864, now seen corresponding path program 1 times [2022-02-15 11:25:12,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:12,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327022554] [2022-02-15 11:25:12,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:12,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:12,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:12,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327022554] [2022-02-15 11:25:12,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327022554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:12,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:12,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:12,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690635995] [2022-02-15 11:25:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:12,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:12,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:12,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:12,603 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) [2022-02-15 11:25:12,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:12,709 INFO L93 Difference]: Finished difference Result 15691 states and 44284 transitions. [2022-02-15 11:25:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:12,709 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 [2022-02-15 11:25:12,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:12,856 INFO L225 Difference]: With dead ends: 15691 [2022-02-15 11:25:12,856 INFO L226 Difference]: Without dead ends: 15450 [2022-02-15 11:25:12,857 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 [2022-02-15 11:25:12,862 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 [2022-02-15 11:25:12,863 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] [2022-02-15 11:25:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2022-02-15 11:25:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 11400. [2022-02-15 11:25:13,189 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) [2022-02-15 11:25:13,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11400 states to 11400 states and 32821 transitions. [2022-02-15 11:25:13,226 INFO L78 Accepts]: Start accepts. Automaton has 11400 states and 32821 transitions. Word has length 101 [2022-02-15 11:25:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:13,227 INFO L470 AbstractCegarLoop]: Abstraction has 11400 states and 32821 transitions. [2022-02-15 11:25:13,227 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) [2022-02-15 11:25:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11400 states and 32821 transitions. [2022-02-15 11:25:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:13,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:13,268 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] [2022-02-15 11:25:13,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 11:25:13,269 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1378875394, now seen corresponding path program 1 times [2022-02-15 11:25:13,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:13,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392175656] [2022-02-15 11:25:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:13,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:13,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:13,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392175656] [2022-02-15 11:25:13,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392175656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:13,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:13,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:13,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786955403] [2022-02-15 11:25:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:13,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:13,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:13,342 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) [2022-02-15 11:25:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:13,421 INFO L93 Difference]: Finished difference Result 11167 states and 31220 transitions. [2022-02-15 11:25:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:13,421 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 [2022-02-15 11:25:13,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:13,456 INFO L225 Difference]: With dead ends: 11167 [2022-02-15 11:25:13,456 INFO L226 Difference]: Without dead ends: 11167 [2022-02-15 11:25:13,456 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 [2022-02-15 11:25:13,464 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 [2022-02-15 11:25:13,465 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] [2022-02-15 11:25:13,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-02-15 11:25:13,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 10541. [2022-02-15 11:25:13,740 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) [2022-02-15 11:25:13,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 29659 transitions. [2022-02-15 11:25:13,841 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 29659 transitions. Word has length 101 [2022-02-15 11:25:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:13,841 INFO L470 AbstractCegarLoop]: Abstraction has 10541 states and 29659 transitions. [2022-02-15 11:25:13,841 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) [2022-02-15 11:25:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 29659 transitions. [2022-02-15 11:25:13,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:13,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:13,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:13,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 11:25:13,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:13,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1511509720, now seen corresponding path program 1 times [2022-02-15 11:25:13,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:13,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707455104] [2022-02-15 11:25:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:13,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:14,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:14,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707455104] [2022-02-15 11:25:14,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707455104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:14,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:14,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:14,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752550361] [2022-02-15 11:25:14,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:14,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:14,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:14,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:14,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:14,044 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) [2022-02-15 11:25:14,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:14,433 INFO L93 Difference]: Finished difference Result 13249 states and 36739 transitions. [2022-02-15 11:25:14,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:25:14,434 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 [2022-02-15 11:25:14,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:14,476 INFO L225 Difference]: With dead ends: 13249 [2022-02-15 11:25:14,476 INFO L226 Difference]: Without dead ends: 12532 [2022-02-15 11:25:14,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-02-15 11:25:14,477 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 406 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 3086 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 [2022-02-15 11:25:14,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 3086 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2022-02-15 11:25:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 10399. [2022-02-15 11:25:14,752 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) [2022-02-15 11:25:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 29314 transitions. [2022-02-15 11:25:14,783 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 29314 transitions. Word has length 101 [2022-02-15 11:25:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:14,783 INFO L470 AbstractCegarLoop]: Abstraction has 10399 states and 29314 transitions. [2022-02-15 11:25:14,783 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) [2022-02-15 11:25:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 29314 transitions. [2022-02-15 11:25:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:14,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:14,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:14,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 11:25:14,805 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:14,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash 770227354, now seen corresponding path program 2 times [2022-02-15 11:25:14,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:14,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811016115] [2022-02-15 11:25:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:14,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:14,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:14,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811016115] [2022-02-15 11:25:14,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811016115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:14,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:14,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:14,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842634627] [2022-02-15 11:25:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:14,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:14,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:14,969 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) [2022-02-15 11:25:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:15,298 INFO L93 Difference]: Finished difference Result 11691 states and 32723 transitions. [2022-02-15 11:25:15,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:25:15,299 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 [2022-02-15 11:25:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:15,332 INFO L225 Difference]: With dead ends: 11691 [2022-02-15 11:25:15,332 INFO L226 Difference]: Without dead ends: 11163 [2022-02-15 11:25:15,332 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 [2022-02-15 11:25:15,334 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 207 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1903 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 [2022-02-15 11:25:15,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1903 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-02-15 11:25:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 10403. [2022-02-15 11:25:15,665 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) [2022-02-15 11:25:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 29321 transitions. [2022-02-15 11:25:15,701 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 29321 transitions. Word has length 101 [2022-02-15 11:25:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:15,701 INFO L470 AbstractCegarLoop]: Abstraction has 10403 states and 29321 transitions. [2022-02-15 11:25:15,701 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) [2022-02-15 11:25:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 29321 transitions. [2022-02-15 11:25:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:15,790 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:15,790 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] [2022-02-15 11:25:15,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 11:25:15,791 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:15,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1737804988, now seen corresponding path program 3 times [2022-02-15 11:25:15,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:15,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969776716] [2022-02-15 11:25:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:15,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:15,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:15,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969776716] [2022-02-15 11:25:15,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969776716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:15,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:15,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:15,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910733429] [2022-02-15 11:25:15,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:15,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:15,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:15,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:15,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:15,955 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) [2022-02-15 11:25:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:16,240 INFO L93 Difference]: Finished difference Result 11527 states and 32293 transitions. [2022-02-15 11:25:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:16,240 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 [2022-02-15 11:25:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:16,270 INFO L225 Difference]: With dead ends: 11527 [2022-02-15 11:25:16,270 INFO L226 Difference]: Without dead ends: 11042 [2022-02-15 11:25:16,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:16,271 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 162 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:16,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 2451 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:16,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-15 11:25:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 10407. [2022-02-15 11:25:16,471 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) [2022-02-15 11:25:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 29328 transitions. [2022-02-15 11:25:16,599 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 29328 transitions. Word has length 101 [2022-02-15 11:25:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:16,599 INFO L470 AbstractCegarLoop]: Abstraction has 10407 states and 29328 transitions. [2022-02-15 11:25:16,599 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) [2022-02-15 11:25:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 29328 transitions. [2022-02-15 11:25:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:16,616 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:16,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:16,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 11:25:16,617 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1056184334, now seen corresponding path program 4 times [2022-02-15 11:25:16,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:16,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200318193] [2022-02-15 11:25:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:16,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:16,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:16,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200318193] [2022-02-15 11:25:16,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200318193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:16,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:16,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:16,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180853518] [2022-02-15 11:25:16,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:16,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:16,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:16,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:16,747 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) [2022-02-15 11:25:16,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:16,983 INFO L93 Difference]: Finished difference Result 11461 states and 32116 transitions. [2022-02-15 11:25:16,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:25:16,984 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 [2022-02-15 11:25:16,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:17,010 INFO L225 Difference]: With dead ends: 11461 [2022-02-15 11:25:17,010 INFO L226 Difference]: Without dead ends: 10953 [2022-02-15 11:25:17,011 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 [2022-02-15 11:25:17,011 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 155 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:17,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2138 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:17,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-02-15 11:25:17,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10381. [2022-02-15 11:25:17,193 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) [2022-02-15 11:25:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 29269 transitions. [2022-02-15 11:25:17,224 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 29269 transitions. Word has length 101 [2022-02-15 11:25:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:17,225 INFO L470 AbstractCegarLoop]: Abstraction has 10381 states and 29269 transitions. [2022-02-15 11:25:17,225 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) [2022-02-15 11:25:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 29269 transitions. [2022-02-15 11:25:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:17,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:17,245 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] [2022-02-15 11:25:17,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 11:25:17,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1996165324, now seen corresponding path program 5 times [2022-02-15 11:25:17,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:17,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692439065] [2022-02-15 11:25:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:17,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:17,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:17,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692439065] [2022-02-15 11:25:17,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692439065] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:17,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:17,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:17,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103628330] [2022-02-15 11:25:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:17,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:17,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:17,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:17,456 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) [2022-02-15 11:25:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:17,746 INFO L93 Difference]: Finished difference Result 11569 states and 32417 transitions. [2022-02-15 11:25:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:17,746 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 [2022-02-15 11:25:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:17,773 INFO L225 Difference]: With dead ends: 11569 [2022-02-15 11:25:17,773 INFO L226 Difference]: Without dead ends: 11084 [2022-02-15 11:25:17,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:17,775 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 114 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:17,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2355 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-02-15 11:25:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 10393. [2022-02-15 11:25:17,961 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) [2022-02-15 11:25:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29298 transitions. [2022-02-15 11:25:17,990 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29298 transitions. Word has length 101 [2022-02-15 11:25:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:17,990 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29298 transitions. [2022-02-15 11:25:17,990 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) [2022-02-15 11:25:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29298 transitions. [2022-02-15 11:25:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:18,009 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:18,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:18,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 11:25:18,009 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:18,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1314544670, now seen corresponding path program 6 times [2022-02-15 11:25:18,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:18,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806897750] [2022-02-15 11:25:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:18,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:18,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:18,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806897750] [2022-02-15 11:25:18,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806897750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:18,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:18,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:18,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605780177] [2022-02-15 11:25:18,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:18,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:18,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:18,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:18,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:18,153 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) [2022-02-15 11:25:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:18,471 INFO L93 Difference]: Finished difference Result 11527 states and 32306 transitions. [2022-02-15 11:25:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:18,472 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 [2022-02-15 11:25:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:18,495 INFO L225 Difference]: With dead ends: 11527 [2022-02-15 11:25:18,496 INFO L226 Difference]: Without dead ends: 11041 [2022-02-15 11:25:18,496 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 [2022-02-15 11:25:18,497 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 110 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1481 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 [2022-02-15 11:25:18,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1481 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11041 states. [2022-02-15 11:25:18,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11041 to 10389. [2022-02-15 11:25:18,722 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) [2022-02-15 11:25:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29287 transitions. [2022-02-15 11:25:18,754 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29287 transitions. Word has length 101 [2022-02-15 11:25:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:18,754 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29287 transitions. [2022-02-15 11:25:18,754 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) [2022-02-15 11:25:18,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29287 transitions. [2022-02-15 11:25:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:18,775 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:18,775 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] [2022-02-15 11:25:18,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 11:25:18,775 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:18,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash -163430860, now seen corresponding path program 7 times [2022-02-15 11:25:18,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:18,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136362476] [2022-02-15 11:25:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:18,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:18,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:18,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136362476] [2022-02-15 11:25:18,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136362476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:18,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:18,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:18,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722406211] [2022-02-15 11:25:18,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:18,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:18,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:18,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:18,905 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) [2022-02-15 11:25:19,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:19,215 INFO L93 Difference]: Finished difference Result 11627 states and 32565 transitions. [2022-02-15 11:25:19,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:25:19,215 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 [2022-02-15 11:25:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:19,238 INFO L225 Difference]: With dead ends: 11627 [2022-02-15 11:25:19,238 INFO L226 Difference]: Without dead ends: 11101 [2022-02-15 11:25:19,239 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 [2022-02-15 11:25:19,239 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 139 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:19,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 1841 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-02-15 11:25:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10385. [2022-02-15 11:25:19,537 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) [2022-02-15 11:25:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 29276 transitions. [2022-02-15 11:25:19,561 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 29276 transitions. Word has length 101 [2022-02-15 11:25:19,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:19,561 INFO L470 AbstractCegarLoop]: Abstraction has 10385 states and 29276 transitions. [2022-02-15 11:25:19,561 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) [2022-02-15 11:25:19,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 29276 transitions. [2022-02-15 11:25:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:19,579 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:19,579 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] [2022-02-15 11:25:19,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 11:25:19,580 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:19,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1465189348, now seen corresponding path program 8 times [2022-02-15 11:25:19,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:19,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457953355] [2022-02-15 11:25:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:19,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:19,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:19,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457953355] [2022-02-15 11:25:19,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457953355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:19,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:19,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:19,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326770913] [2022-02-15 11:25:19,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:19,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:19,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:19,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:19,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:19,717 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) [2022-02-15 11:25:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:20,048 INFO L93 Difference]: Finished difference Result 11677 states and 32685 transitions. [2022-02-15 11:25:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:25:20,049 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 [2022-02-15 11:25:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:20,072 INFO L225 Difference]: With dead ends: 11677 [2022-02-15 11:25:20,072 INFO L226 Difference]: Without dead ends: 11149 [2022-02-15 11:25:20,072 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 [2022-02-15 11:25:20,073 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1919 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 [2022-02-15 11:25:20,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1919 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-02-15 11:25:20,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10389. [2022-02-15 11:25:20,251 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) [2022-02-15 11:25:20,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29283 transitions. [2022-02-15 11:25:20,279 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29283 transitions. Word has length 101 [2022-02-15 11:25:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:20,280 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29283 transitions. [2022-02-15 11:25:20,280 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) [2022-02-15 11:25:20,280 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29283 transitions. [2022-02-15 11:25:20,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:20,450 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:20,450 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] [2022-02-15 11:25:20,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 11:25:20,450 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:20,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:20,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1042842994, now seen corresponding path program 9 times [2022-02-15 11:25:20,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:20,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002023256] [2022-02-15 11:25:20,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:20,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:20,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:20,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002023256] [2022-02-15 11:25:20,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002023256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:20,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:20,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:20,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598904535] [2022-02-15 11:25:20,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:20,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:20,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:20,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:20,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:20,563 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) [2022-02-15 11:25:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:20,831 INFO L93 Difference]: Finished difference Result 11521 states and 32277 transitions. [2022-02-15 11:25:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:20,831 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 [2022-02-15 11:25:20,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:20,855 INFO L225 Difference]: With dead ends: 11521 [2022-02-15 11:25:20,856 INFO L226 Difference]: Without dead ends: 11036 [2022-02-15 11:25:20,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:20,857 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 122 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2355 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 [2022-02-15 11:25:20,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 2355 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-02-15 11:25:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 10393. [2022-02-15 11:25:21,041 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) [2022-02-15 11:25:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29290 transitions. [2022-02-15 11:25:21,065 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29290 transitions. Word has length 101 [2022-02-15 11:25:21,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:21,065 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29290 transitions. [2022-02-15 11:25:21,065 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) [2022-02-15 11:25:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29290 transitions. [2022-02-15 11:25:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:21,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:21,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:21,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 11:25:21,083 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -361222340, now seen corresponding path program 10 times [2022-02-15 11:25:21,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:21,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555396214] [2022-02-15 11:25:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:21,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:21,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:21,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555396214] [2022-02-15 11:25:21,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555396214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:21,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:21,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:21,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475021060] [2022-02-15 11:25:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:21,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:21,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:21,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:21,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:21,206 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) [2022-02-15 11:25:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:21,439 INFO L93 Difference]: Finished difference Result 11447 states and 32078 transitions. [2022-02-15 11:25:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:21,439 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 [2022-02-15 11:25:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:21,508 INFO L225 Difference]: With dead ends: 11447 [2022-02-15 11:25:21,508 INFO L226 Difference]: Without dead ends: 10935 [2022-02-15 11:25:21,509 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 [2022-02-15 11:25:21,509 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 108 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:21,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2310 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10935 states. [2022-02-15 11:25:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10935 to 10363. [2022-02-15 11:25:21,643 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) [2022-02-15 11:25:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 29224 transitions. [2022-02-15 11:25:21,662 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 29224 transitions. Word has length 101 [2022-02-15 11:25:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:21,663 INFO L470 AbstractCegarLoop]: Abstraction has 10363 states and 29224 transitions. [2022-02-15 11:25:21,663 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) [2022-02-15 11:25:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 29224 transitions. [2022-02-15 11:25:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:21,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:21,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:21,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 11:25:21,677 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash -774742998, now seen corresponding path program 11 times [2022-02-15 11:25:21,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:21,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644085884] [2022-02-15 11:25:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:21,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:21,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:21,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644085884] [2022-02-15 11:25:21,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644085884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:21,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:21,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:21,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718125988] [2022-02-15 11:25:21,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:21,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:21,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:21,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:21,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:21,789 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) [2022-02-15 11:25:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:22,067 INFO L93 Difference]: Finished difference Result 11966 states and 33522 transitions. [2022-02-15 11:25:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:22,068 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 [2022-02-15 11:25:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:22,088 INFO L225 Difference]: With dead ends: 11966 [2022-02-15 11:25:22,088 INFO L226 Difference]: Without dead ends: 11481 [2022-02-15 11:25:22,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:22,089 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 124 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2339 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 [2022-02-15 11:25:22,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 2339 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:22,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2022-02-15 11:25:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 10383. [2022-02-15 11:25:22,273 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) [2022-02-15 11:25:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29275 transitions. [2022-02-15 11:25:22,409 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29275 transitions. Word has length 101 [2022-02-15 11:25:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:22,409 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29275 transitions. [2022-02-15 11:25:22,409 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) [2022-02-15 11:25:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29275 transitions. [2022-02-15 11:25:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:22,426 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:22,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:22,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 11:25:22,427 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:22,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:22,427 INFO L85 PathProgramCache]: Analyzing trace with hash -93122344, now seen corresponding path program 12 times [2022-02-15 11:25:22,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:22,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334552576] [2022-02-15 11:25:22,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:22,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:22,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:22,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334552576] [2022-02-15 11:25:22,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334552576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:22,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:22,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:22,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079173696] [2022-02-15 11:25:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:22,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:22,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:22,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:22,579 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) [2022-02-15 11:25:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:22,870 INFO L93 Difference]: Finished difference Result 11924 states and 33411 transitions. [2022-02-15 11:25:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:22,870 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 [2022-02-15 11:25:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:22,896 INFO L225 Difference]: With dead ends: 11924 [2022-02-15 11:25:22,896 INFO L226 Difference]: Without dead ends: 11438 [2022-02-15 11:25:22,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:22,897 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 117 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2099 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 [2022-02-15 11:25:22,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2099 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-02-15 11:25:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 10379. [2022-02-15 11:25:23,082 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) [2022-02-15 11:25:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29264 transitions. [2022-02-15 11:25:23,105 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29264 transitions. Word has length 101 [2022-02-15 11:25:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:23,105 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29264 transitions. [2022-02-15 11:25:23,106 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) [2022-02-15 11:25:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29264 transitions. [2022-02-15 11:25:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:23,205 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:23,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:23,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 11:25:23,206 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1057991466, now seen corresponding path program 13 times [2022-02-15 11:25:23,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:23,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361391836] [2022-02-15 11:25:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:23,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:23,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:23,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361391836] [2022-02-15 11:25:23,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361391836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:23,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:23,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:23,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348459762] [2022-02-15 11:25:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:23,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:23,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:23,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:23,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:23,338 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) [2022-02-15 11:25:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:23,631 INFO L93 Difference]: Finished difference Result 12056 states and 33758 transitions. [2022-02-15 11:25:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:25:23,632 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 [2022-02-15 11:25:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:23,652 INFO L225 Difference]: With dead ends: 12056 [2022-02-15 11:25:23,653 INFO L226 Difference]: Without dead ends: 11530 [2022-02-15 11:25:23,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:25:23,653 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 155 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:23,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1942 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-02-15 11:25:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10375. [2022-02-15 11:25:23,791 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) [2022-02-15 11:25:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10375 states to 10375 states and 29253 transitions. [2022-02-15 11:25:23,818 INFO L78 Accepts]: Start accepts. Automaton has 10375 states and 29253 transitions. Word has length 101 [2022-02-15 11:25:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:23,819 INFO L470 AbstractCegarLoop]: Abstraction has 10375 states and 29253 transitions. [2022-02-15 11:25:23,819 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) [2022-02-15 11:25:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 10375 states and 29253 transitions. [2022-02-15 11:25:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:23,836 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:23,836 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] [2022-02-15 11:25:23,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 11:25:23,836 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:23,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1608355622, now seen corresponding path program 14 times [2022-02-15 11:25:23,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:23,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018789944] [2022-02-15 11:25:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:23,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:23,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:23,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018789944] [2022-02-15 11:25:23,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018789944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:23,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:23,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:23,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683957756] [2022-02-15 11:25:23,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:23,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:23,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:23,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:23,944 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) [2022-02-15 11:25:24,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:24,245 INFO L93 Difference]: Finished difference Result 12058 states and 33746 transitions. [2022-02-15 11:25:24,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:25:24,245 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 [2022-02-15 11:25:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:24,264 INFO L225 Difference]: With dead ends: 12058 [2022-02-15 11:25:24,264 INFO L226 Difference]: Without dead ends: 11530 [2022-02-15 11:25:24,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:25:24,265 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 160 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:24,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2349 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-02-15 11:25:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10379. [2022-02-15 11:25:24,444 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) [2022-02-15 11:25:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-02-15 11:25:24,463 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-02-15 11:25:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:24,464 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-02-15 11:25:24,464 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) [2022-02-15 11:25:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-02-15 11:25:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:24,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:24,477 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] [2022-02-15 11:25:24,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 11:25:24,477 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash 178579332, now seen corresponding path program 15 times [2022-02-15 11:25:24,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:24,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744364085] [2022-02-15 11:25:24,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:24,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:24,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:24,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744364085] [2022-02-15 11:25:24,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744364085] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:24,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:24,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:24,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022795980] [2022-02-15 11:25:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:24,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:24,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:24,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:24,587 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) [2022-02-15 11:25:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:24,868 INFO L93 Difference]: Finished difference Result 11926 states and 33404 transitions. [2022-02-15 11:25:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:24,869 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 [2022-02-15 11:25:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:24,892 INFO L225 Difference]: With dead ends: 11926 [2022-02-15 11:25:24,893 INFO L226 Difference]: Without dead ends: 11441 [2022-02-15 11:25:24,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:24,893 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 138 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:24,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 2278 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-02-15 11:25:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10383. [2022-02-15 11:25:25,038 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) [2022-02-15 11:25:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29267 transitions. [2022-02-15 11:25:25,059 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29267 transitions. Word has length 101 [2022-02-15 11:25:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:25,059 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29267 transitions. [2022-02-15 11:25:25,059 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) [2022-02-15 11:25:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29267 transitions. [2022-02-15 11:25:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:25,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:25,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:25,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 11:25:25,073 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash 860199986, now seen corresponding path program 16 times [2022-02-15 11:25:25,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:25,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171247329] [2022-02-15 11:25:25,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:25,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:25,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:25,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171247329] [2022-02-15 11:25:25,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171247329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:25,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:25,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:25,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312868938] [2022-02-15 11:25:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:25,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:25,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:25,229 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) [2022-02-15 11:25:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:25,467 INFO L93 Difference]: Finished difference Result 11876 states and 33271 transitions. [2022-02-15 11:25:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:25,467 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 [2022-02-15 11:25:25,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:25,491 INFO L225 Difference]: With dead ends: 11876 [2022-02-15 11:25:25,491 INFO L226 Difference]: Without dead ends: 11382 [2022-02-15 11:25:25,492 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 [2022-02-15 11:25:25,493 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 120 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1954 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 [2022-02-15 11:25:25,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 1954 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2022-02-15 11:25:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 10371. [2022-02-15 11:25:25,618 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) [2022-02-15 11:25:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 29242 transitions. [2022-02-15 11:25:25,637 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 29242 transitions. Word has length 101 [2022-02-15 11:25:25,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:25,637 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 29242 transitions. [2022-02-15 11:25:25,637 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) [2022-02-15 11:25:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 29242 transitions. [2022-02-15 11:25:25,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:25,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:25,650 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] [2022-02-15 11:25:25,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 11:25:25,650 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 122641612, now seen corresponding path program 17 times [2022-02-15 11:25:25,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:25,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14385069] [2022-02-15 11:25:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:25,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:25,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:25,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14385069] [2022-02-15 11:25:25,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14385069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:25,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:25,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:25,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859948222] [2022-02-15 11:25:25,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:25,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:25,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:25,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:25,763 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) [2022-02-15 11:25:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:26,010 INFO L93 Difference]: Finished difference Result 11870 states and 33254 transitions. [2022-02-15 11:25:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:25:26,011 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 [2022-02-15 11:25:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:26,031 INFO L225 Difference]: With dead ends: 11870 [2022-02-15 11:25:26,031 INFO L226 Difference]: Without dead ends: 11385 [2022-02-15 11:25:26,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:26,032 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 196 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:26,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1744 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-02-15 11:25:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10387. [2022-02-15 11:25:26,162 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) [2022-02-15 11:25:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10387 states to 10387 states and 29282 transitions. [2022-02-15 11:25:26,183 INFO L78 Accepts]: Start accepts. Automaton has 10387 states and 29282 transitions. Word has length 101 [2022-02-15 11:25:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:26,183 INFO L470 AbstractCegarLoop]: Abstraction has 10387 states and 29282 transitions. [2022-02-15 11:25:26,183 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) [2022-02-15 11:25:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10387 states and 29282 transitions. [2022-02-15 11:25:26,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:26,198 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:26,198 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] [2022-02-15 11:25:26,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 11:25:26,198 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:26,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash 804262266, now seen corresponding path program 18 times [2022-02-15 11:25:26,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:26,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177119567] [2022-02-15 11:25:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:26,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:26,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:26,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177119567] [2022-02-15 11:25:26,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177119567] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:26,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:26,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:26,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854517104] [2022-02-15 11:25:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:26,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:26,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:26,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:26,310 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) [2022-02-15 11:25:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:26,555 INFO L93 Difference]: Finished difference Result 11832 states and 33154 transitions. [2022-02-15 11:25:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:26,555 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 [2022-02-15 11:25:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:26,575 INFO L225 Difference]: With dead ends: 11832 [2022-02-15 11:25:26,576 INFO L226 Difference]: Without dead ends: 11346 [2022-02-15 11:25:26,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:26,577 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 216 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:26,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2253 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2022-02-15 11:25:26,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 10383. [2022-02-15 11:25:26,742 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) [2022-02-15 11:25:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29271 transitions. [2022-02-15 11:25:26,764 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29271 transitions. Word has length 101 [2022-02-15 11:25:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:26,764 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29271 transitions. [2022-02-15 11:25:26,764 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) [2022-02-15 11:25:26,765 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29271 transitions. [2022-02-15 11:25:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:26,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:26,780 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] [2022-02-15 11:25:26,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 11:25:26,780 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:26,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1955376076, now seen corresponding path program 19 times [2022-02-15 11:25:26,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:26,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547800866] [2022-02-15 11:25:26,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:26,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:26,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:26,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547800866] [2022-02-15 11:25:26,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547800866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:26,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:26,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:26,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102480532] [2022-02-15 11:25:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:26,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:26,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:26,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:26,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:26,890 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) [2022-02-15 11:25:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:27,215 INFO L93 Difference]: Finished difference Result 11868 states and 33249 transitions. [2022-02-15 11:25:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:25:27,216 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 [2022-02-15 11:25:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:27,235 INFO L225 Difference]: With dead ends: 11868 [2022-02-15 11:25:27,235 INFO L226 Difference]: Without dead ends: 11342 [2022-02-15 11:25:27,235 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 [2022-02-15 11:25:27,236 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 249 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:27,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2580 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-02-15 11:25:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 10379. [2022-02-15 11:25:27,398 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) [2022-02-15 11:25:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-02-15 11:25:27,420 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-02-15 11:25:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:27,420 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-02-15 11:25:27,420 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) [2022-02-15 11:25:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-02-15 11:25:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:27,434 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:27,434 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] [2022-02-15 11:25:27,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 11:25:27,434 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:27,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1147543880, now seen corresponding path program 20 times [2022-02-15 11:25:27,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:27,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764970858] [2022-02-15 11:25:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:27,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:27,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:27,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764970858] [2022-02-15 11:25:27,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764970858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:27,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:27,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:27,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431118625] [2022-02-15 11:25:27,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:27,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:27,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:27,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:27,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:27,533 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) [2022-02-15 11:25:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:27,839 INFO L93 Difference]: Finished difference Result 13198 states and 36719 transitions. [2022-02-15 11:25:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:25:27,840 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 [2022-02-15 11:25:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:27,860 INFO L225 Difference]: With dead ends: 13198 [2022-02-15 11:25:27,860 INFO L226 Difference]: Without dead ends: 12492 [2022-02-15 11:25:27,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:25:27,861 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 467 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:27,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2119 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-02-15 11:25:27,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 10275. [2022-02-15 11:25:27,995 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) [2022-02-15 11:25:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10275 states to 10275 states and 28995 transitions. [2022-02-15 11:25:28,013 INFO L78 Accepts]: Start accepts. Automaton has 10275 states and 28995 transitions. Word has length 101 [2022-02-15 11:25:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:28,014 INFO L470 AbstractCegarLoop]: Abstraction has 10275 states and 28995 transitions. [2022-02-15 11:25:28,014 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) [2022-02-15 11:25:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 10275 states and 28995 transitions. [2022-02-15 11:25:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:28,028 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:28,028 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] [2022-02-15 11:25:28,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 11:25:28,028 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:28,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:28,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178174, now seen corresponding path program 1 times [2022-02-15 11:25:28,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:28,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309097376] [2022-02-15 11:25:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:28,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:28,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:28,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309097376] [2022-02-15 11:25:28,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309097376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:28,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:28,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:28,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684705113] [2022-02-15 11:25:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:28,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:28,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:28,062 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) [2022-02-15 11:25:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:28,109 INFO L93 Difference]: Finished difference Result 9393 states and 26084 transitions. [2022-02-15 11:25:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:28,110 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 [2022-02-15 11:25:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:28,128 INFO L225 Difference]: With dead ends: 9393 [2022-02-15 11:25:28,128 INFO L226 Difference]: Without dead ends: 9393 [2022-02-15 11:25:28,129 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 [2022-02-15 11:25:28,129 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 [2022-02-15 11:25:28,133 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] [2022-02-15 11:25:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9393 states. [2022-02-15 11:25:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9393 to 9393. [2022-02-15 11:25:28,251 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) [2022-02-15 11:25:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 26084 transitions. [2022-02-15 11:25:28,267 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 26084 transitions. Word has length 101 [2022-02-15 11:25:28,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:28,267 INFO L470 AbstractCegarLoop]: Abstraction has 9393 states and 26084 transitions. [2022-02-15 11:25:28,268 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) [2022-02-15 11:25:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 26084 transitions. [2022-02-15 11:25:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:28,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:28,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:28,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 11:25:28,279 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1661801566, now seen corresponding path program 1 times [2022-02-15 11:25:28,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:28,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594277479] [2022-02-15 11:25:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:28,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:28,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:28,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594277479] [2022-02-15 11:25:28,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594277479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:28,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:28,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:28,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113883794] [2022-02-15 11:25:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:28,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:28,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:28,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:28,392 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) [2022-02-15 11:25:28,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:28,657 INFO L93 Difference]: Finished difference Result 10497 states and 28835 transitions. [2022-02-15 11:25:28,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:25:28,657 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 [2022-02-15 11:25:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:28,673 INFO L225 Difference]: With dead ends: 10497 [2022-02-15 11:25:28,673 INFO L226 Difference]: Without dead ends: 9786 [2022-02-15 11:25:28,674 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 [2022-02-15 11:25:28,674 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 250 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:28,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 1496 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:28,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2022-02-15 11:25:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9204. [2022-02-15 11:25:28,813 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) [2022-02-15 11:25:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 25616 transitions. [2022-02-15 11:25:28,831 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 25616 transitions. Word has length 101 [2022-02-15 11:25:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:28,832 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 25616 transitions. [2022-02-15 11:25:28,832 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) [2022-02-15 11:25:28,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 25616 transitions. [2022-02-15 11:25:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:28,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:28,844 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] [2022-02-15 11:25:28,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 11:25:28,845 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:28,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2035505446, now seen corresponding path program 2 times [2022-02-15 11:25:28,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:28,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863784351] [2022-02-15 11:25:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:28,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:28,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:28,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863784351] [2022-02-15 11:25:28,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863784351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:28,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:28,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:28,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287578616] [2022-02-15 11:25:28,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:28,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:28,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:28,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:28,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:28,960 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) [2022-02-15 11:25:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:29,275 INFO L93 Difference]: Finished difference Result 10091 states and 27888 transitions. [2022-02-15 11:25:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:25:29,275 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 [2022-02-15 11:25:29,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:29,290 INFO L225 Difference]: With dead ends: 10091 [2022-02-15 11:25:29,290 INFO L226 Difference]: Without dead ends: 9569 [2022-02-15 11:25:29,290 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 [2022-02-15 11:25:29,291 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 149 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1927 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 [2022-02-15 11:25:29,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1927 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-02-15 11:25:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9208. [2022-02-15 11:25:29,425 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) [2022-02-15 11:25:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 25623 transitions. [2022-02-15 11:25:29,443 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 25623 transitions. Word has length 101 [2022-02-15 11:25:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:29,443 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 25623 transitions. [2022-02-15 11:25:29,443 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) [2022-02-15 11:25:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 25623 transitions. [2022-02-15 11:25:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:29,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:29,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:29,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 11:25:29,455 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1953590340, now seen corresponding path program 3 times [2022-02-15 11:25:29,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:29,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963625531] [2022-02-15 11:25:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:29,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:29,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:29,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963625531] [2022-02-15 11:25:29,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963625531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:29,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:29,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:29,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090235459] [2022-02-15 11:25:29,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:29,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:29,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:29,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:29,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:29,557 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) [2022-02-15 11:25:29,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:29,788 INFO L93 Difference]: Finished difference Result 9966 states and 27559 transitions. [2022-02-15 11:25:29,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:29,788 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 [2022-02-15 11:25:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:29,803 INFO L225 Difference]: With dead ends: 9966 [2022-02-15 11:25:29,803 INFO L226 Difference]: Without dead ends: 9487 [2022-02-15 11:25:29,804 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 [2022-02-15 11:25:29,804 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 105 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1684 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 [2022-02-15 11:25:29,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1684 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-02-15 11:25:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9212. [2022-02-15 11:25:29,936 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) [2022-02-15 11:25:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 25630 transitions. [2022-02-15 11:25:29,954 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 25630 transitions. Word has length 101 [2022-02-15 11:25:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:29,954 INFO L470 AbstractCegarLoop]: Abstraction has 9212 states and 25630 transitions. [2022-02-15 11:25:29,954 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) [2022-02-15 11:25:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 25630 transitions. [2022-02-15 11:25:29,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:29,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:29,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:29,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 11:25:29,966 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash -713853838, now seen corresponding path program 4 times [2022-02-15 11:25:29,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:29,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478178267] [2022-02-15 11:25:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:29,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:30,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:30,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478178267] [2022-02-15 11:25:30,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478178267] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:30,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:30,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:30,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581763981] [2022-02-15 11:25:30,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:30,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:30,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:30,100 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) [2022-02-15 11:25:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:30,339 INFO L93 Difference]: Finished difference Result 9908 states and 27404 transitions. [2022-02-15 11:25:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:25:30,339 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 [2022-02-15 11:25:30,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:30,353 INFO L225 Difference]: With dead ends: 9908 [2022-02-15 11:25:30,354 INFO L226 Difference]: Without dead ends: 9406 [2022-02-15 11:25:30,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:30,355 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 90 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:30,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 1818 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-02-15 11:25:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9186. [2022-02-15 11:25:30,486 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) [2022-02-15 11:25:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 25571 transitions. [2022-02-15 11:25:30,504 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 25571 transitions. Word has length 101 [2022-02-15 11:25:30,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:30,505 INFO L470 AbstractCegarLoop]: Abstraction has 9186 states and 25571 transitions. [2022-02-15 11:25:30,505 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) [2022-02-15 11:25:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 25571 transitions. [2022-02-15 11:25:30,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:30,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:30,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:30,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 11:25:30,517 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1508449932, now seen corresponding path program 5 times [2022-02-15 11:25:30,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:30,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700576980] [2022-02-15 11:25:30,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:30,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:30,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:30,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700576980] [2022-02-15 11:25:30,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700576980] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:30,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:30,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:30,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138353621] [2022-02-15 11:25:30,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:30,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:30,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:30,627 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) [2022-02-15 11:25:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:30,850 INFO L93 Difference]: Finished difference Result 10016 states and 27705 transitions. [2022-02-15 11:25:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:30,850 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 [2022-02-15 11:25:30,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:30,868 INFO L225 Difference]: With dead ends: 10016 [2022-02-15 11:25:30,868 INFO L226 Difference]: Without dead ends: 9537 [2022-02-15 11:25:30,868 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 [2022-02-15 11:25:30,869 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 98 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:30,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 1799 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-02-15 11:25:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 9198. [2022-02-15 11:25:31,006 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) [2022-02-15 11:25:31,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25600 transitions. [2022-02-15 11:25:31,025 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25600 transitions. Word has length 101 [2022-02-15 11:25:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:31,026 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25600 transitions. [2022-02-15 11:25:31,026 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) [2022-02-15 11:25:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25600 transitions. [2022-02-15 11:25:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:31,039 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:31,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:31,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 11:25:31,040 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1158994246, now seen corresponding path program 6 times [2022-02-15 11:25:31,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:31,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750784443] [2022-02-15 11:25:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:31,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:31,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:31,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750784443] [2022-02-15 11:25:31,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750784443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:31,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:31,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:31,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871405046] [2022-02-15 11:25:31,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:31,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:31,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:31,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:31,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:31,158 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) [2022-02-15 11:25:31,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:31,401 INFO L93 Difference]: Finished difference Result 9974 states and 27594 transitions. [2022-02-15 11:25:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:31,402 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 [2022-02-15 11:25:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:31,415 INFO L225 Difference]: With dead ends: 9974 [2022-02-15 11:25:31,415 INFO L226 Difference]: Without dead ends: 9494 [2022-02-15 11:25:31,416 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 [2022-02-15 11:25:31,416 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 94 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:31,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 1225 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-02-15 11:25:31,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9194. [2022-02-15 11:25:31,514 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) [2022-02-15 11:25:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25589 transitions. [2022-02-15 11:25:31,529 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25589 transitions. Word has length 101 [2022-02-15 11:25:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:31,529 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25589 transitions. [2022-02-15 11:25:31,529 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) [2022-02-15 11:25:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25589 transitions. [2022-02-15 11:25:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:31,540 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:31,540 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] [2022-02-15 11:25:31,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 11:25:31,540 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:31,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2014915710, now seen corresponding path program 7 times [2022-02-15 11:25:31,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:31,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370656090] [2022-02-15 11:25:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:31,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:31,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:31,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:31,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370656090] [2022-02-15 11:25:31,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370656090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:31,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:31,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:31,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529791165] [2022-02-15 11:25:31,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:31,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:31,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:31,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:31,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:31,644 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) [2022-02-15 11:25:31,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:31,901 INFO L93 Difference]: Finished difference Result 10122 states and 27981 transitions. [2022-02-15 11:25:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:25:31,901 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 [2022-02-15 11:25:31,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:31,921 INFO L225 Difference]: With dead ends: 10122 [2022-02-15 11:25:31,921 INFO L226 Difference]: Without dead ends: 9602 [2022-02-15 11:25:31,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:25:31,922 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 135 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:31,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1615 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-02-15 11:25:32,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9190. [2022-02-15 11:25:32,030 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) [2022-02-15 11:25:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 25578 transitions. [2022-02-15 11:25:32,047 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 25578 transitions. Word has length 101 [2022-02-15 11:25:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:32,048 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 25578 transitions. [2022-02-15 11:25:32,048 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) [2022-02-15 11:25:32,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 25578 transitions. [2022-02-15 11:25:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:32,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:32,063 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] [2022-02-15 11:25:32,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 11:25:32,064 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:32,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1352894776, now seen corresponding path program 8 times [2022-02-15 11:25:32,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:32,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059949083] [2022-02-15 11:25:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:32,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:32,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:32,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059949083] [2022-02-15 11:25:32,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059949083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:32,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:32,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:32,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114038213] [2022-02-15 11:25:32,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:32,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:32,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:32,171 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) [2022-02-15 11:25:32,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:32,469 INFO L93 Difference]: Finished difference Result 10077 states and 27850 transitions. [2022-02-15 11:25:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:25:32,469 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 [2022-02-15 11:25:32,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:32,528 INFO L225 Difference]: With dead ends: 10077 [2022-02-15 11:25:32,529 INFO L226 Difference]: Without dead ends: 9555 [2022-02-15 11:25:32,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-15 11:25:32,529 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 129 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 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 [2022-02-15 11:25:32,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 2039 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2022-02-15 11:25:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9194. [2022-02-15 11:25:32,618 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) [2022-02-15 11:25:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25585 transitions. [2022-02-15 11:25:32,634 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25585 transitions. Word has length 101 [2022-02-15 11:25:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:32,634 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25585 transitions. [2022-02-15 11:25:32,634 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) [2022-02-15 11:25:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25585 transitions. [2022-02-15 11:25:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:32,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:32,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:32,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 11:25:32,645 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:32,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:32,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1047023266, now seen corresponding path program 9 times [2022-02-15 11:25:32,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:32,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730889556] [2022-02-15 11:25:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:32,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:32,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:32,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730889556] [2022-02-15 11:25:32,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730889556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:32,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:32,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:32,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658540752] [2022-02-15 11:25:32,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:32,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:32,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:32,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:32,761 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) [2022-02-15 11:25:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:33,019 INFO L93 Difference]: Finished difference Result 9960 states and 27543 transitions. [2022-02-15 11:25:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:33,020 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 [2022-02-15 11:25:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:33,039 INFO L225 Difference]: With dead ends: 9960 [2022-02-15 11:25:33,040 INFO L226 Difference]: Without dead ends: 9481 [2022-02-15 11:25:33,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:33,040 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 101 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:33,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1810 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-02-15 11:25:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 9198. [2022-02-15 11:25:33,191 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) [2022-02-15 11:25:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25592 transitions. [2022-02-15 11:25:33,214 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25592 transitions. Word has length 101 [2022-02-15 11:25:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:33,215 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25592 transitions. [2022-02-15 11:25:33,215 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) [2022-02-15 11:25:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25592 transitions. [2022-02-15 11:25:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:33,230 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:33,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:33,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 11:25:33,231 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420912, now seen corresponding path program 10 times [2022-02-15 11:25:33,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:33,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949831951] [2022-02-15 11:25:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:33,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:33,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:33,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949831951] [2022-02-15 11:25:33,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949831951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:33,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:33,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:33,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188325399] [2022-02-15 11:25:33,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:33,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:33,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:33,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:33,343 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) [2022-02-15 11:25:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:33,569 INFO L93 Difference]: Finished difference Result 9894 states and 27366 transitions. [2022-02-15 11:25:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:33,569 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 [2022-02-15 11:25:33,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:33,583 INFO L225 Difference]: With dead ends: 9894 [2022-02-15 11:25:33,583 INFO L226 Difference]: Without dead ends: 9388 [2022-02-15 11:25:33,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:33,584 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 84 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:33,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 1760 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:33,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-02-15 11:25:33,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 9168. [2022-02-15 11:25:33,695 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) [2022-02-15 11:25:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25526 transitions. [2022-02-15 11:25:33,712 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25526 transitions. Word has length 101 [2022-02-15 11:25:33,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:33,712 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25526 transitions. [2022-02-15 11:25:33,712 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) [2022-02-15 11:25:33,712 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25526 transitions. [2022-02-15 11:25:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:33,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:33,724 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] [2022-02-15 11:25:33,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 11:25:33,725 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2141146676, now seen corresponding path program 11 times [2022-02-15 11:25:33,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:33,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833060146] [2022-02-15 11:25:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:33,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:33,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:33,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833060146] [2022-02-15 11:25:33,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833060146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:33,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:33,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:33,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577116715] [2022-02-15 11:25:33,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:33,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:33,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:33,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:33,828 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) [2022-02-15 11:25:34,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:34,019 INFO L93 Difference]: Finished difference Result 9859 states and 27279 transitions. [2022-02-15 11:25:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 11:25:34,020 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 [2022-02-15 11:25:34,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:34,034 INFO L225 Difference]: With dead ends: 9859 [2022-02-15 11:25:34,034 INFO L226 Difference]: Without dead ends: 9380 [2022-02-15 11:25:34,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:34,035 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:34,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1365 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-02-15 11:25:34,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9176. [2022-02-15 11:25:34,142 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) [2022-02-15 11:25:34,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 25544 transitions. [2022-02-15 11:25:34,158 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 25544 transitions. Word has length 101 [2022-02-15 11:25:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:34,158 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 25544 transitions. [2022-02-15 11:25:34,158 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) [2022-02-15 11:25:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 25544 transitions. [2022-02-15 11:25:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:34,170 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:34,170 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] [2022-02-15 11:25:34,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 11:25:34,170 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:34,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:34,170 INFO L85 PathProgramCache]: Analyzing trace with hash -513623558, now seen corresponding path program 12 times [2022-02-15 11:25:34,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:34,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973147798] [2022-02-15 11:25:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:34,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:34,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:34,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973147798] [2022-02-15 11:25:34,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973147798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:34,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:34,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:34,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167399283] [2022-02-15 11:25:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:34,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:34,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:34,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:34,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:34,264 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) [2022-02-15 11:25:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:34,477 INFO L93 Difference]: Finished difference Result 9825 states and 27190 transitions. [2022-02-15 11:25:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:34,482 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 [2022-02-15 11:25:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:34,497 INFO L225 Difference]: With dead ends: 9825 [2022-02-15 11:25:34,497 INFO L226 Difference]: Without dead ends: 9345 [2022-02-15 11:25:34,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-15 11:25:34,498 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1809 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 [2022-02-15 11:25:34,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 1809 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:34,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-02-15 11:25:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 9172. [2022-02-15 11:25:34,609 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) [2022-02-15 11:25:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 25533 transitions. [2022-02-15 11:25:34,625 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 25533 transitions. Word has length 101 [2022-02-15 11:25:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:34,625 INFO L470 AbstractCegarLoop]: Abstraction has 9172 states and 25533 transitions. [2022-02-15 11:25:34,625 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) [2022-02-15 11:25:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 25533 transitions. [2022-02-15 11:25:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:34,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:34,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:34,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 11:25:34,637 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1634680898, now seen corresponding path program 13 times [2022-02-15 11:25:34,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:34,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790629718] [2022-02-15 11:25:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:34,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:34,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:34,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790629718] [2022-02-15 11:25:34,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790629718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:34,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:34,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:34,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842724940] [2022-02-15 11:25:34,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:34,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:34,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:34,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:34,747 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) [2022-02-15 11:25:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:35,022 INFO L93 Difference]: Finished difference Result 9861 states and 27285 transitions. [2022-02-15 11:25:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 11:25:35,022 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 [2022-02-15 11:25:35,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:35,037 INFO L225 Difference]: With dead ends: 9861 [2022-02-15 11:25:35,037 INFO L226 Difference]: Without dead ends: 9341 [2022-02-15 11:25:35,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-15 11:25:35,038 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 146 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1861 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 [2022-02-15 11:25:35,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1861 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-02-15 11:25:35,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9168. [2022-02-15 11:25:35,142 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) [2022-02-15 11:25:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25522 transitions. [2022-02-15 11:25:35,157 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25522 transitions. Word has length 101 [2022-02-15 11:25:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:35,158 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25522 transitions. [2022-02-15 11:25:35,158 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) [2022-02-15 11:25:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25522 transitions. [2022-02-15 11:25:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:35,170 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:35,170 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] [2022-02-15 11:25:35,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 11:25:35,170 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:35,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:35,170 INFO L85 PathProgramCache]: Analyzing trace with hash -760242484, now seen corresponding path program 14 times [2022-02-15 11:25:35,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:35,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819051704] [2022-02-15 11:25:35,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:35,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:35,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:35,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819051704] [2022-02-15 11:25:35,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819051704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:35,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:35,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:35,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696374587] [2022-02-15 11:25:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:35,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:35,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:35,264 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) [2022-02-15 11:25:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:35,604 INFO L93 Difference]: Finished difference Result 10266 states and 28261 transitions. [2022-02-15 11:25:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 11:25:35,604 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 [2022-02-15 11:25:35,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:35,620 INFO L225 Difference]: With dead ends: 10266 [2022-02-15 11:25:35,621 INFO L226 Difference]: Without dead ends: 9618 [2022-02-15 11:25:35,621 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 [2022-02-15 11:25:35,622 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 271 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:35,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1728 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:35,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9618 states. [2022-02-15 11:25:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9618 to 9036. [2022-02-15 11:25:35,726 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) [2022-02-15 11:25:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25163 transitions. [2022-02-15 11:25:35,742 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25163 transitions. Word has length 101 [2022-02-15 11:25:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:35,742 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25163 transitions. [2022-02-15 11:25:35,742 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) [2022-02-15 11:25:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25163 transitions. [2022-02-15 11:25:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:35,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:35,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:35,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 11:25:35,754 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1002250734, now seen corresponding path program 15 times [2022-02-15 11:25:35,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:35,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439351016] [2022-02-15 11:25:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:35,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:35,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:35,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439351016] [2022-02-15 11:25:35,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439351016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:35,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:35,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:35,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997181702] [2022-02-15 11:25:35,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:35,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:35,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:35,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:35,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:35,865 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) [2022-02-15 11:25:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:36,092 INFO L93 Difference]: Finished difference Result 9719 states and 26894 transitions. [2022-02-15 11:25:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:36,092 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 [2022-02-15 11:25:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:36,109 INFO L225 Difference]: With dead ends: 9719 [2022-02-15 11:25:36,110 INFO L226 Difference]: Without dead ends: 9240 [2022-02-15 11:25:36,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-02-15 11:25:36,110 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 99 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:36,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1340 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:36,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-02-15 11:25:36,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9044. [2022-02-15 11:25:36,222 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) [2022-02-15 11:25:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 25181 transitions. [2022-02-15 11:25:36,240 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 25181 transitions. Word has length 101 [2022-02-15 11:25:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:36,240 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 25181 transitions. [2022-02-15 11:25:36,240 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) [2022-02-15 11:25:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 25181 transitions. [2022-02-15 11:25:36,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:36,252 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:36,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:36,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 11:25:36,252 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:36,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:36,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1665193444, now seen corresponding path program 16 times [2022-02-15 11:25:36,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:36,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246707104] [2022-02-15 11:25:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:36,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:36,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:36,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246707104] [2022-02-15 11:25:36,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246707104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:36,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:36,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:36,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085339043] [2022-02-15 11:25:36,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:36,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:36,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:36,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:36,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:36,356 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) [2022-02-15 11:25:36,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:36,542 INFO L93 Difference]: Finished difference Result 9677 states and 26783 transitions. [2022-02-15 11:25:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:36,542 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 [2022-02-15 11:25:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:36,556 INFO L225 Difference]: With dead ends: 9677 [2022-02-15 11:25:36,556 INFO L226 Difference]: Without dead ends: 9197 [2022-02-15 11:25:36,556 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 [2022-02-15 11:25:36,557 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 [2022-02-15 11:25:36,557 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] [2022-02-15 11:25:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-02-15 11:25:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9040. [2022-02-15 11:25:36,659 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) [2022-02-15 11:25:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 25170 transitions. [2022-02-15 11:25:36,676 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 25170 transitions. Word has length 101 [2022-02-15 11:25:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:36,676 INFO L470 AbstractCegarLoop]: Abstraction has 9040 states and 25170 transitions. [2022-02-15 11:25:36,676 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) [2022-02-15 11:25:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 25170 transitions. [2022-02-15 11:25:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:36,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:36,688 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] [2022-02-15 11:25:36,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 11:25:36,688 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1508716512, now seen corresponding path program 17 times [2022-02-15 11:25:36,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:36,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942641308] [2022-02-15 11:25:36,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:36,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:36,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:36,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942641308] [2022-02-15 11:25:36,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942641308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:36,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:36,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:36,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915549232] [2022-02-15 11:25:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:36,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:36,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:36,796 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) [2022-02-15 11:25:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:37,049 INFO L93 Difference]: Finished difference Result 9825 states and 27170 transitions. [2022-02-15 11:25:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 11:25:37,050 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 [2022-02-15 11:25:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:37,064 INFO L225 Difference]: With dead ends: 9825 [2022-02-15 11:25:37,064 INFO L226 Difference]: Without dead ends: 9305 [2022-02-15 11:25:37,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-15 11:25:37,065 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 141 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1718 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 [2022-02-15 11:25:37,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1718 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-02-15 11:25:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9036. [2022-02-15 11:25:37,172 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) [2022-02-15 11:25:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25159 transitions. [2022-02-15 11:25:37,188 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25159 transitions. Word has length 101 [2022-02-15 11:25:37,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:37,189 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25159 transitions. [2022-02-15 11:25:37,189 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) [2022-02-15 11:25:37,189 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25159 transitions. [2022-02-15 11:25:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:37,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:37,201 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] [2022-02-15 11:25:37,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 11:25:37,201 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:37,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash 846695578, now seen corresponding path program 18 times [2022-02-15 11:25:37,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:37,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894395778] [2022-02-15 11:25:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:37,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:37,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:37,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894395778] [2022-02-15 11:25:37,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894395778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:37,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:37,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:37,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436818706] [2022-02-15 11:25:37,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:37,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:37,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:37,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:37,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:37,304 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) [2022-02-15 11:25:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:37,575 INFO L93 Difference]: Finished difference Result 9656 states and 26723 transitions. [2022-02-15 11:25:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 11:25:37,576 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 [2022-02-15 11:25:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:37,595 INFO L225 Difference]: With dead ends: 9656 [2022-02-15 11:25:37,595 INFO L226 Difference]: Without dead ends: 9134 [2022-02-15 11:25:37,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:25:37,604 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 110 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:37,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1710 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:37,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-02-15 11:25:37,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 8993. [2022-02-15 11:25:37,715 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) [2022-02-15 11:25:37,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 25043 transitions. [2022-02-15 11:25:37,731 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 25043 transitions. Word has length 101 [2022-02-15 11:25:37,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:37,732 INFO L470 AbstractCegarLoop]: Abstraction has 8993 states and 25043 transitions. [2022-02-15 11:25:37,732 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) [2022-02-15 11:25:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 25043 transitions. [2022-02-15 11:25:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:37,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:37,744 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] [2022-02-15 11:25:37,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 11:25:37,744 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:37,745 INFO L85 PathProgramCache]: Analyzing trace with hash 540824068, now seen corresponding path program 19 times [2022-02-15 11:25:37,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:37,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582580174] [2022-02-15 11:25:37,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:37,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:37,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:37,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582580174] [2022-02-15 11:25:37,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582580174] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:37,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:37,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:37,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070360554] [2022-02-15 11:25:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:37,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:37,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:37,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:37,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:37,829 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) [2022-02-15 11:25:38,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:38,034 INFO L93 Difference]: Finished difference Result 9570 states and 26495 transitions. [2022-02-15 11:25:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 11:25:38,034 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 [2022-02-15 11:25:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:38,048 INFO L225 Difference]: With dead ends: 9570 [2022-02-15 11:25:38,049 INFO L226 Difference]: Without dead ends: 9091 [2022-02-15 11:25:38,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-15 11:25:38,049 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 132 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:38,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1473 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:38,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2022-02-15 11:25:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8997. [2022-02-15 11:25:38,154 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) [2022-02-15 11:25:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 25050 transitions. [2022-02-15 11:25:38,169 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 25050 transitions. Word has length 101 [2022-02-15 11:25:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:38,169 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 25050 transitions. [2022-02-15 11:25:38,169 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) [2022-02-15 11:25:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 25050 transitions. [2022-02-15 11:25:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 11:25:38,180 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:38,180 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] [2022-02-15 11:25:38,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 11:25:38,180 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:38,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2126620110, now seen corresponding path program 20 times [2022-02-15 11:25:38,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:38,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392542450] [2022-02-15 11:25:38,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:38,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:38,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:38,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392542450] [2022-02-15 11:25:38,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392542450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:38,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:38,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 11:25:38,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966487015] [2022-02-15 11:25:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:38,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 11:25:38,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 11:25:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-15 11:25:38,277 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) [2022-02-15 11:25:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:38,434 INFO L93 Difference]: Finished difference Result 9473 states and 26239 transitions. [2022-02-15 11:25:38,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 11:25:38,434 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 [2022-02-15 11:25:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:38,447 INFO L225 Difference]: With dead ends: 9473 [2022-02-15 11:25:38,447 INFO L226 Difference]: Without dead ends: 8939 [2022-02-15 11:25:38,448 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 [2022-02-15 11:25:38,448 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 83 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:38,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1237 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 11:25:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2022-02-15 11:25:38,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8939. [2022-02-15 11:25:38,549 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) [2022-02-15 11:25:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 24919 transitions. [2022-02-15 11:25:38,565 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 24919 transitions. Word has length 101 [2022-02-15 11:25:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:38,565 INFO L470 AbstractCegarLoop]: Abstraction has 8939 states and 24919 transitions. [2022-02-15 11:25:38,565 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) [2022-02-15 11:25:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 24919 transitions. [2022-02-15 11:25:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:38,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:38,577 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] [2022-02-15 11:25:38,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 11:25:38,577 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:38,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1425192312, now seen corresponding path program 1 times [2022-02-15 11:25:38,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:38,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590411297] [2022-02-15 11:25:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:38,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:38,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:38,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590411297] [2022-02-15 11:25:38,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590411297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:38,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:38,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:38,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211760869] [2022-02-15 11:25:38,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:38,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:38,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:38,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:38,694 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) [2022-02-15 11:25:39,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:39,408 INFO L93 Difference]: Finished difference Result 14618 states and 40107 transitions. [2022-02-15 11:25:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 11:25:39,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:39,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:39,430 INFO L225 Difference]: With dead ends: 14618 [2022-02-15 11:25:39,430 INFO L226 Difference]: Without dead ends: 13655 [2022-02-15 11:25:39,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:25:39,431 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 797 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:39,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 5599 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 11:25:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13655 states. [2022-02-15 11:25:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13655 to 9479. [2022-02-15 11:25:39,568 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) [2022-02-15 11:25:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 26401 transitions. [2022-02-15 11:25:39,585 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 26401 transitions. Word has length 109 [2022-02-15 11:25:39,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:39,585 INFO L470 AbstractCegarLoop]: Abstraction has 9479 states and 26401 transitions. [2022-02-15 11:25:39,585 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) [2022-02-15 11:25:39,585 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 26401 transitions. [2022-02-15 11:25:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:39,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:39,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:39,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 11:25:39,597 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:39,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1923529448, now seen corresponding path program 1 times [2022-02-15 11:25:39,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:39,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574957281] [2022-02-15 11:25:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:39,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:39,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:39,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574957281] [2022-02-15 11:25:39,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574957281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:39,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:39,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:39,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571032702] [2022-02-15 11:25:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:39,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:39,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:39,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:39,655 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) [2022-02-15 11:25:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:39,733 INFO L93 Difference]: Finished difference Result 13726 states and 37493 transitions. [2022-02-15 11:25:39,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:39,734 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 [2022-02-15 11:25:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:39,756 INFO L225 Difference]: With dead ends: 13726 [2022-02-15 11:25:39,756 INFO L226 Difference]: Without dead ends: 13663 [2022-02-15 11:25:39,756 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 [2022-02-15 11:25:39,757 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 [2022-02-15 11:25:39,757 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] [2022-02-15 11:25:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-02-15 11:25:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9937. [2022-02-15 11:25:39,897 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) [2022-02-15 11:25:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 27455 transitions. [2022-02-15 11:25:39,916 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 27455 transitions. Word has length 109 [2022-02-15 11:25:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:39,916 INFO L470 AbstractCegarLoop]: Abstraction has 9937 states and 27455 transitions. [2022-02-15 11:25:39,916 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) [2022-02-15 11:25:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 27455 transitions. [2022-02-15 11:25:39,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:39,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:39,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:39,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 11:25:39,930 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash 356410200, now seen corresponding path program 1 times [2022-02-15 11:25:39,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:39,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815439813] [2022-02-15 11:25:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:39,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:39,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:39,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815439813] [2022-02-15 11:25:39,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815439813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:39,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:39,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:39,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228308449] [2022-02-15 11:25:39,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:39,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:39,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:39,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:39,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:39,951 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) [2022-02-15 11:25:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:40,020 INFO L93 Difference]: Finished difference Result 14235 states and 38677 transitions. [2022-02-15 11:25:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:40,020 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 [2022-02-15 11:25:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:40,050 INFO L225 Difference]: With dead ends: 14235 [2022-02-15 11:25:40,050 INFO L226 Difference]: Without dead ends: 13712 [2022-02-15 11:25:40,050 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 [2022-02-15 11:25:40,051 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 [2022-02-15 11:25:40,051 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] [2022-02-15 11:25:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2022-02-15 11:25:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 9931. [2022-02-15 11:25:40,228 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) [2022-02-15 11:25:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 27425 transitions. [2022-02-15 11:25:40,247 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 27425 transitions. Word has length 109 [2022-02-15 11:25:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:40,247 INFO L470 AbstractCegarLoop]: Abstraction has 9931 states and 27425 transitions. [2022-02-15 11:25:40,247 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) [2022-02-15 11:25:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 27425 transitions. [2022-02-15 11:25:40,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:40,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:40,260 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] [2022-02-15 11:25:40,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 11:25:40,260 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash -958186088, now seen corresponding path program 1 times [2022-02-15 11:25:40,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:40,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923126132] [2022-02-15 11:25:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:40,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:40,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:40,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923126132] [2022-02-15 11:25:40,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923126132] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:40,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:40,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:25:40,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182645100] [2022-02-15 11:25:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:40,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:25:40,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:25:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:25:40,280 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) [2022-02-15 11:25:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:40,326 INFO L93 Difference]: Finished difference Result 10120 states and 27148 transitions. [2022-02-15 11:25:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:25:40,326 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 [2022-02-15 11:25:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:40,339 INFO L225 Difference]: With dead ends: 10120 [2022-02-15 11:25:40,340 INFO L226 Difference]: Without dead ends: 10120 [2022-02-15 11:25:40,340 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 [2022-02-15 11:25:40,340 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 [2022-02-15 11:25:40,340 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] [2022-02-15 11:25:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2022-02-15 11:25:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 9280. [2022-02-15 11:25:40,448 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) [2022-02-15 11:25:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 25019 transitions. [2022-02-15 11:25:40,465 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 25019 transitions. Word has length 109 [2022-02-15 11:25:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:40,465 INFO L470 AbstractCegarLoop]: Abstraction has 9280 states and 25019 transitions. [2022-02-15 11:25:40,465 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) [2022-02-15 11:25:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 25019 transitions. [2022-02-15 11:25:40,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:40,476 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:40,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:40,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 11:25:40,476 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:40,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:40,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2026968200, now seen corresponding path program 1 times [2022-02-15 11:25:40,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:40,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030624093] [2022-02-15 11:25:40,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:40,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:40,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:40,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030624093] [2022-02-15 11:25:40,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030624093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:40,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:40,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:40,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299074937] [2022-02-15 11:25:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:40,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:40,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:40,624 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) [2022-02-15 11:25:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:41,635 INFO L93 Difference]: Finished difference Result 12057 states and 32171 transitions. [2022-02-15 11:25:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 11:25:41,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:41,657 INFO L225 Difference]: With dead ends: 12057 [2022-02-15 11:25:41,658 INFO L226 Difference]: Without dead ends: 11168 [2022-02-15 11:25:41,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-02-15 11:25:41,660 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 763 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3805 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 [2022-02-15 11:25:41,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3805 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:41,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2022-02-15 11:25:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 9060. [2022-02-15 11:25:41,789 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) [2022-02-15 11:25:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 24464 transitions. [2022-02-15 11:25:41,804 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 24464 transitions. Word has length 109 [2022-02-15 11:25:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:41,805 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 24464 transitions. [2022-02-15 11:25:41,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 24464 transitions. [2022-02-15 11:25:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:41,815 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:41,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:41,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 11:25:41,816 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:41,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:41,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1022754920, now seen corresponding path program 2 times [2022-02-15 11:25:41,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:41,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861701858] [2022-02-15 11:25:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:41,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:41,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:41,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861701858] [2022-02-15 11:25:41,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861701858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:41,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:41,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:41,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144904737] [2022-02-15 11:25:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:41,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:41,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:41,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:41,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:41,970 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) [2022-02-15 11:25:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:42,802 INFO L93 Difference]: Finished difference Result 11337 states and 30482 transitions. [2022-02-15 11:25:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 11:25:42,802 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 [2022-02-15 11:25:42,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:42,819 INFO L225 Difference]: With dead ends: 11337 [2022-02-15 11:25:42,819 INFO L226 Difference]: Without dead ends: 10723 [2022-02-15 11:25:42,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-02-15 11:25:42,820 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 [2022-02-15 11:25:42,821 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] [2022-02-15 11:25:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-02-15 11:25:42,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 9064. [2022-02-15 11:25:42,940 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) [2022-02-15 11:25:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24471 transitions. [2022-02-15 11:25:42,956 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24471 transitions. Word has length 109 [2022-02-15 11:25:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:42,957 INFO L470 AbstractCegarLoop]: Abstraction has 9064 states and 24471 transitions. [2022-02-15 11:25:42,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:42,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24471 transitions. [2022-02-15 11:25:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:42,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:42,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:42,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 11:25:42,969 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2080051074, now seen corresponding path program 3 times [2022-02-15 11:25:42,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:42,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402520542] [2022-02-15 11:25:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:42,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:43,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:43,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402520542] [2022-02-15 11:25:43,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402520542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:43,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:43,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:43,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055672180] [2022-02-15 11:25:43,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:43,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:43,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:43,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:43,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:43,109 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) [2022-02-15 11:25:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:43,750 INFO L93 Difference]: Finished difference Result 11173 states and 30052 transitions. [2022-02-15 11:25:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:25:43,750 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 [2022-02-15 11:25:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:43,766 INFO L225 Difference]: With dead ends: 11173 [2022-02-15 11:25:43,766 INFO L226 Difference]: Without dead ends: 10602 [2022-02-15 11:25:43,767 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 [2022-02-15 11:25:43,767 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 436 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 4055 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 [2022-02-15 11:25:43,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 4055 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-02-15 11:25:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 9068. [2022-02-15 11:25:43,879 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) [2022-02-15 11:25:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 24478 transitions. [2022-02-15 11:25:43,894 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 24478 transitions. Word has length 109 [2022-02-15 11:25:43,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:43,894 INFO L470 AbstractCegarLoop]: Abstraction has 9068 states and 24478 transitions. [2022-02-15 11:25:43,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:43,895 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 24478 transitions. [2022-02-15 11:25:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:43,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:43,906 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] [2022-02-15 11:25:43,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 11:25:43,906 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:43,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:43,906 INFO L85 PathProgramCache]: Analyzing trace with hash -290488620, now seen corresponding path program 4 times [2022-02-15 11:25:43,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:43,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460348835] [2022-02-15 11:25:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:43,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:44,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:44,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460348835] [2022-02-15 11:25:44,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460348835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:44,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:44,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:44,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929587483] [2022-02-15 11:25:44,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:44,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:44,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:44,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:44,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:44,040 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) [2022-02-15 11:25:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:44,645 INFO L93 Difference]: Finished difference Result 11048 states and 29723 transitions. [2022-02-15 11:25:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:25:44,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:44,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:44,665 INFO L225 Difference]: With dead ends: 11048 [2022-02-15 11:25:44,665 INFO L226 Difference]: Without dead ends: 10520 [2022-02-15 11:25:44,666 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 [2022-02-15 11:25:44,666 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 364 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 4642 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 [2022-02-15 11:25:44,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 4642 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:44,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-02-15 11:25:44,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 9072. [2022-02-15 11:25:44,776 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) [2022-02-15 11:25:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24485 transitions. [2022-02-15 11:25:44,791 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24485 transitions. Word has length 109 [2022-02-15 11:25:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:44,791 INFO L470 AbstractCegarLoop]: Abstraction has 9072 states and 24485 transitions. [2022-02-15 11:25:44,791 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) [2022-02-15 11:25:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24485 transitions. [2022-02-15 11:25:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:44,802 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:44,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:44,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 11:25:44,802 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:44,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1496446334, now seen corresponding path program 5 times [2022-02-15 11:25:44,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:44,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114615045] [2022-02-15 11:25:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:44,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:44,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:44,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114615045] [2022-02-15 11:25:44,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114615045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:44,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:44,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:44,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744206581] [2022-02-15 11:25:44,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:44,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:44,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:44,931 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) [2022-02-15 11:25:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:45,341 INFO L93 Difference]: Finished difference Result 10884 states and 29293 transitions. [2022-02-15 11:25:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:25:45,342 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:45,356 INFO L225 Difference]: With dead ends: 10884 [2022-02-15 11:25:45,357 INFO L226 Difference]: Without dead ends: 10399 [2022-02-15 11:25:45,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:25:45,357 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 312 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3547 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 [2022-02-15 11:25:45,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 3547 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2022-02-15 11:25:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 9076. [2022-02-15 11:25:45,459 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) [2022-02-15 11:25:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 24492 transitions. [2022-02-15 11:25:45,473 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 24492 transitions. Word has length 109 [2022-02-15 11:25:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:45,474 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 24492 transitions. [2022-02-15 11:25:45,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 24492 transitions. [2022-02-15 11:25:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:45,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:45,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:45,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 11:25:45,485 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:45,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2116900308, now seen corresponding path program 6 times [2022-02-15 11:25:45,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:45,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913770106] [2022-02-15 11:25:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:45,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:45,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:45,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913770106] [2022-02-15 11:25:45,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913770106] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:45,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:45,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:45,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865269933] [2022-02-15 11:25:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:45,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:45,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:45,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:45,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:45,626 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) [2022-02-15 11:25:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:46,041 INFO L93 Difference]: Finished difference Result 10794 states and 29050 transitions. [2022-02-15 11:25:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 11:25:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:46,056 INFO L225 Difference]: With dead ends: 10794 [2022-02-15 11:25:46,056 INFO L226 Difference]: Without dead ends: 10270 [2022-02-15 11:25:46,056 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 [2022-02-15 11:25:46,057 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 295 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 3759 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 [2022-02-15 11:25:46,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 3759 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-02-15 11:25:46,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 9034. [2022-02-15 11:25:46,157 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) [2022-02-15 11:25:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 24397 transitions. [2022-02-15 11:25:46,172 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 24397 transitions. Word has length 109 [2022-02-15 11:25:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:46,172 INFO L470 AbstractCegarLoop]: Abstraction has 9034 states and 24397 transitions. [2022-02-15 11:25:46,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 24397 transitions. [2022-02-15 11:25:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:46,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:46,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:46,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 11:25:46,182 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439320, now seen corresponding path program 7 times [2022-02-15 11:25:46,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:46,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136924366] [2022-02-15 11:25:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:46,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:46,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:46,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136924366] [2022-02-15 11:25:46,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136924366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:46,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:46,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:46,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983641992] [2022-02-15 11:25:46,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:46,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:46,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:46,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:46,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:46,320 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) [2022-02-15 11:25:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:46,799 INFO L93 Difference]: Finished difference Result 11006 states and 29645 transitions. [2022-02-15 11:25:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:25:46,799 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:46,815 INFO L225 Difference]: With dead ends: 11006 [2022-02-15 11:25:46,816 INFO L226 Difference]: Without dead ends: 10521 [2022-02-15 11:25:46,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:25:46,816 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 270 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:46,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 4193 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-02-15 11:25:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-02-15 11:25:46,929 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) [2022-02-15 11:25:46,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24448 transitions. [2022-02-15 11:25:46,945 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24448 transitions. Word has length 109 [2022-02-15 11:25:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:46,945 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24448 transitions. [2022-02-15 11:25:46,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24448 transitions. [2022-02-15 11:25:46,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:46,957 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:46,957 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] [2022-02-15 11:25:46,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 11:25:46,957 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:46,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:46,957 INFO L85 PathProgramCache]: Analyzing trace with hash -840818666, now seen corresponding path program 8 times [2022-02-15 11:25:46,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:46,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946324528] [2022-02-15 11:25:46,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:46,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:47,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:47,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946324528] [2022-02-15 11:25:47,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946324528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:47,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:47,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:47,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985860530] [2022-02-15 11:25:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:47,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:47,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:47,100 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) [2022-02-15 11:25:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:47,600 INFO L93 Difference]: Finished difference Result 10964 states and 29534 transitions. [2022-02-15 11:25:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:25:47,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:47,615 INFO L225 Difference]: With dead ends: 10964 [2022-02-15 11:25:47,615 INFO L226 Difference]: Without dead ends: 10478 [2022-02-15 11:25:47,616 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 [2022-02-15 11:25:47,616 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 260 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 3371 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 [2022-02-15 11:25:47,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 3371 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:47,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-02-15 11:25:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 9050. [2022-02-15 11:25:47,722 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) [2022-02-15 11:25:47,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24437 transitions. [2022-02-15 11:25:47,737 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24437 transitions. Word has length 109 [2022-02-15 11:25:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:47,737 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24437 transitions. [2022-02-15 11:25:47,737 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) [2022-02-15 11:25:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24437 transitions. [2022-02-15 11:25:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:47,747 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:47,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:47,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 11:25:47,748 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:47,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash -140131110, now seen corresponding path program 9 times [2022-02-15 11:25:47,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:47,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193107297] [2022-02-15 11:25:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:47,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:47,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:47,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193107297] [2022-02-15 11:25:47,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193107297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:47,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:47,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:47,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564056919] [2022-02-15 11:25:47,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:47,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:47,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:47,900 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) [2022-02-15 11:25:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:48,603 INFO L93 Difference]: Finished difference Result 11032 states and 29701 transitions. [2022-02-15 11:25:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 11:25:48,604 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:48,618 INFO L225 Difference]: With dead ends: 11032 [2022-02-15 11:25:48,618 INFO L226 Difference]: Without dead ends: 10506 [2022-02-15 11:25:48,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 11:25:48,619 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 325 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:48,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 3239 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-02-15 11:25:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 9046. [2022-02-15 11:25:48,770 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) [2022-02-15 11:25:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24426 transitions. [2022-02-15 11:25:48,785 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24426 transitions. Word has length 109 [2022-02-15 11:25:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:48,785 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24426 transitions. [2022-02-15 11:25:48,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24426 transitions. [2022-02-15 11:25:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:48,795 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:48,795 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] [2022-02-15 11:25:48,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 11:25:48,796 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash 937556918, now seen corresponding path program 10 times [2022-02-15 11:25:48,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:48,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135754183] [2022-02-15 11:25:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:48,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:48,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:48,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135754183] [2022-02-15 11:25:48,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135754183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:48,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:48,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:48,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747691792] [2022-02-15 11:25:48,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:48,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:48,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:48,921 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) [2022-02-15 11:25:49,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:49,512 INFO L93 Difference]: Finished difference Result 11162 states and 30045 transitions. [2022-02-15 11:25:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:25:49,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:49,529 INFO L225 Difference]: With dead ends: 11162 [2022-02-15 11:25:49,529 INFO L226 Difference]: Without dead ends: 10634 [2022-02-15 11:25:49,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:25:49,530 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 344 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:49,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3997 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-02-15 11:25:49,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 9050. [2022-02-15 11:25:49,637 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) [2022-02-15 11:25:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24433 transitions. [2022-02-15 11:25:49,652 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24433 transitions. Word has length 109 [2022-02-15 11:25:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:49,653 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24433 transitions. [2022-02-15 11:25:49,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24433 transitions. [2022-02-15 11:25:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:49,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:49,664 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] [2022-02-15 11:25:49,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 11:25:49,664 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475424, now seen corresponding path program 11 times [2022-02-15 11:25:49,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:49,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145215098] [2022-02-15 11:25:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:49,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:49,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:49,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:49,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145215098] [2022-02-15 11:25:49,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145215098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:49,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:49,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:49,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102194527] [2022-02-15 11:25:49,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:49,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:49,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:49,811 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) [2022-02-15 11:25:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:50,356 INFO L93 Difference]: Finished difference Result 10998 states and 29615 transitions. [2022-02-15 11:25:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:25:50,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:50,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:50,391 INFO L225 Difference]: With dead ends: 10998 [2022-02-15 11:25:50,391 INFO L226 Difference]: Without dead ends: 10513 [2022-02-15 11:25:50,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:25:50,392 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 284 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:50,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3688 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:50,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-02-15 11:25:50,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 9054. [2022-02-15 11:25:50,555 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) [2022-02-15 11:25:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24440 transitions. [2022-02-15 11:25:50,583 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24440 transitions. Word has length 109 [2022-02-15 11:25:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:50,583 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24440 transitions. [2022-02-15 11:25:50,583 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) [2022-02-15 11:25:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24440 transitions. [2022-02-15 11:25:50,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:50,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:50,598 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] [2022-02-15 11:25:50,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 11:25:50,598 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:50,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:50,599 INFO L85 PathProgramCache]: Analyzing trace with hash -888854770, now seen corresponding path program 12 times [2022-02-15 11:25:50,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:50,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562668852] [2022-02-15 11:25:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:50,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:50,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:50,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562668852] [2022-02-15 11:25:50,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562668852] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:50,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:50,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:50,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508804736] [2022-02-15 11:25:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:50,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:50,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:50,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:50,745 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) [2022-02-15 11:25:51,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:51,290 INFO L93 Difference]: Finished difference Result 10932 states and 29438 transitions. [2022-02-15 11:25:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:25:51,290 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 [2022-02-15 11:25:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:51,321 INFO L225 Difference]: With dead ends: 10932 [2022-02-15 11:25:51,321 INFO L226 Difference]: Without dead ends: 10438 [2022-02-15 11:25:51,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:25:51,322 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 269 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 4142 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 [2022-02-15 11:25:51,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 4142 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:51,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2022-02-15 11:25:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 9042. [2022-02-15 11:25:51,515 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) [2022-02-15 11:25:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24415 transitions. [2022-02-15 11:25:51,542 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24415 transitions. Word has length 109 [2022-02-15 11:25:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:51,542 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24415 transitions. [2022-02-15 11:25:51,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24415 transitions. [2022-02-15 11:25:51,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:51,557 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:51,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:51,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 11:25:51,557 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:51,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:51,558 INFO L85 PathProgramCache]: Analyzing trace with hash -565920918, now seen corresponding path program 13 times [2022-02-15 11:25:51,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:51,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088876303] [2022-02-15 11:25:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:51,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:51,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:51,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088876303] [2022-02-15 11:25:51,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088876303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:51,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:51,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:51,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605308056] [2022-02-15 11:25:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:51,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:51,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:51,690 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) [2022-02-15 11:25:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:52,380 INFO L93 Difference]: Finished difference Result 11295 states and 30392 transitions. [2022-02-15 11:25:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:25:52,381 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 [2022-02-15 11:25:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:52,410 INFO L225 Difference]: With dead ends: 11295 [2022-02-15 11:25:52,410 INFO L226 Difference]: Without dead ends: 10724 [2022-02-15 11:25:52,411 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 [2022-02-15 11:25:52,411 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 408 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:52,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 3846 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2022-02-15 11:25:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 9046. [2022-02-15 11:25:52,572 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) [2022-02-15 11:25:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24422 transitions. [2022-02-15 11:25:52,594 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24422 transitions. Word has length 109 [2022-02-15 11:25:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:52,595 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24422 transitions. [2022-02-15 11:25:52,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24422 transitions. [2022-02-15 11:25:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:52,609 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:52,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:52,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 11:25:52,610 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:52,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1223641536, now seen corresponding path program 14 times [2022-02-15 11:25:52,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:52,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879387753] [2022-02-15 11:25:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:52,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:52,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:52,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879387753] [2022-02-15 11:25:52,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879387753] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:52,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:52,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:52,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039000170] [2022-02-15 11:25:52,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:52,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:52,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:52,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:52,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:52,738 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) [2022-02-15 11:25:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:53,387 INFO L93 Difference]: Finished difference Result 11170 states and 30063 transitions. [2022-02-15 11:25:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:25:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:53,412 INFO L225 Difference]: With dead ends: 11170 [2022-02-15 11:25:53,412 INFO L226 Difference]: Without dead ends: 10642 [2022-02-15 11:25:53,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:25:53,413 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 342 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 4061 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 [2022-02-15 11:25:53,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 4061 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-02-15 11:25:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 9050. [2022-02-15 11:25:53,573 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) [2022-02-15 11:25:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24429 transitions. [2022-02-15 11:25:53,596 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24429 transitions. Word has length 109 [2022-02-15 11:25:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:53,596 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24429 transitions. [2022-02-15 11:25:53,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24429 transitions. [2022-02-15 11:25:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:53,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:53,611 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] [2022-02-15 11:25:53,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 11:25:53,612 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:53,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1284390806, now seen corresponding path program 15 times [2022-02-15 11:25:53,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:53,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037256209] [2022-02-15 11:25:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:53,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:53,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:53,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037256209] [2022-02-15 11:25:53,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037256209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:53,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:53,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:53,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609516799] [2022-02-15 11:25:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:53,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:53,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:53,759 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) [2022-02-15 11:25:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:54,243 INFO L93 Difference]: Finished difference Result 11006 states and 29633 transitions. [2022-02-15 11:25:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:25:54,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:54,259 INFO L225 Difference]: With dead ends: 11006 [2022-02-15 11:25:54,259 INFO L226 Difference]: Without dead ends: 10521 [2022-02-15 11:25:54,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:25:54,260 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 280 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3344 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 [2022-02-15 11:25:54,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3344 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:54,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-02-15 11:25:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-02-15 11:25:54,375 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) [2022-02-15 11:25:54,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24436 transitions. [2022-02-15 11:25:54,393 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24436 transitions. Word has length 109 [2022-02-15 11:25:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:54,393 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24436 transitions. [2022-02-15 11:25:54,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:54,393 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24436 transitions. [2022-02-15 11:25:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:54,406 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:54,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:54,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 11:25:54,406 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash -602770152, now seen corresponding path program 16 times [2022-02-15 11:25:54,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:54,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895067815] [2022-02-15 11:25:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:54,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:54,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:54,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895067815] [2022-02-15 11:25:54,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895067815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:54,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:54,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:54,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345277256] [2022-02-15 11:25:54,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:54,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:54,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:54,539 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) [2022-02-15 11:25:55,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:55,008 INFO L93 Difference]: Finished difference Result 10932 states and 29434 transitions. [2022-02-15 11:25:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:25:55,009 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 [2022-02-15 11:25:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:55,025 INFO L225 Difference]: With dead ends: 10932 [2022-02-15 11:25:55,025 INFO L226 Difference]: Without dead ends: 10434 [2022-02-15 11:25:55,026 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 [2022-02-15 11:25:55,026 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:55,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 4132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:55,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-02-15 11:25:55,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 9038. [2022-02-15 11:25:55,147 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) [2022-02-15 11:25:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 24404 transitions. [2022-02-15 11:25:55,164 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 24404 transitions. Word has length 109 [2022-02-15 11:25:55,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:55,164 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 24404 transitions. [2022-02-15 11:25:55,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:55,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 24404 transitions. [2022-02-15 11:25:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:55,176 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:55,177 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] [2022-02-15 11:25:55,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 11:25:55,177 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash 71721492, now seen corresponding path program 17 times [2022-02-15 11:25:55,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:55,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394226744] [2022-02-15 11:25:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:55,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:55,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:55,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:55,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394226744] [2022-02-15 11:25:55,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394226744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:55,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:55,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:55,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051117591] [2022-02-15 11:25:55,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:55,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:55,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:55,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:55,323 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) [2022-02-15 11:25:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:56,132 INFO L93 Difference]: Finished difference Result 11315 states and 30422 transitions. [2022-02-15 11:25:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 11:25:56,133 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 [2022-02-15 11:25:56,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:56,148 INFO L225 Difference]: With dead ends: 11315 [2022-02-15 11:25:56,148 INFO L226 Difference]: Without dead ends: 10701 [2022-02-15 11:25:56,149 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 [2022-02-15 11:25:56,149 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 489 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:25:56,149 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] [2022-02-15 11:25:56,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-15 11:25:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9042. [2022-02-15 11:25:56,253 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) [2022-02-15 11:25:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24411 transitions. [2022-02-15 11:25:56,269 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24411 transitions. Word has length 109 [2022-02-15 11:25:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:56,269 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24411 transitions. [2022-02-15 11:25:56,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24411 transitions. [2022-02-15 11:25:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:56,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:56,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:56,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 11:25:56,279 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash -985574662, now seen corresponding path program 18 times [2022-02-15 11:25:56,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:56,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709691583] [2022-02-15 11:25:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:56,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:56,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:56,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709691583] [2022-02-15 11:25:56,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709691583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:56,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:56,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:56,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884864338] [2022-02-15 11:25:56,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:56,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:56,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:56,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:56,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:56,417 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) [2022-02-15 11:25:57,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:57,176 INFO L93 Difference]: Finished difference Result 11167 states and 30036 transitions. [2022-02-15 11:25:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:25:57,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:57,197 INFO L225 Difference]: With dead ends: 11167 [2022-02-15 11:25:57,198 INFO L226 Difference]: Without dead ends: 10596 [2022-02-15 11:25:57,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 11:25:57,200 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 413 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:25:57,200 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] [2022-02-15 11:25:57,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2022-02-15 11:25:57,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 9046. [2022-02-15 11:25:57,316 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) [2022-02-15 11:25:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24418 transitions. [2022-02-15 11:25:57,333 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24418 transitions. Word has length 109 [2022-02-15 11:25:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:57,333 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24418 transitions. [2022-02-15 11:25:57,333 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) [2022-02-15 11:25:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24418 transitions. [2022-02-15 11:25:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:57,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:57,344 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] [2022-02-15 11:25:57,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 11:25:57,344 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 803987792, now seen corresponding path program 19 times [2022-02-15 11:25:57,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:57,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198665777] [2022-02-15 11:25:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:57,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:57,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:57,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198665777] [2022-02-15 11:25:57,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198665777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:57,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:57,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:57,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129382108] [2022-02-15 11:25:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:57,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:57,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:57,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:57,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:57,476 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) [2022-02-15 11:25:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:58,072 INFO L93 Difference]: Finished difference Result 11050 states and 29729 transitions. [2022-02-15 11:25:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:25:58,072 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 [2022-02-15 11:25:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:58,090 INFO L225 Difference]: With dead ends: 11050 [2022-02-15 11:25:58,090 INFO L226 Difference]: Without dead ends: 10522 [2022-02-15 11:25:58,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:25:58,091 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 350 mSDsluCounter, 3699 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:25:58,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 4008 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:25:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-02-15 11:25:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 9050. [2022-02-15 11:25:58,220 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) [2022-02-15 11:25:58,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24425 transitions. [2022-02-15 11:25:58,238 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24425 transitions. Word has length 109 [2022-02-15 11:25:58,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:58,239 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24425 transitions. [2022-02-15 11:25:58,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:58,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24425 transitions. [2022-02-15 11:25:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:58,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:58,251 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] [2022-02-15 11:25:58,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 11:25:58,251 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1704044550, now seen corresponding path program 20 times [2022-02-15 11:25:58,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:58,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790427702] [2022-02-15 11:25:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:58,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:58,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:58,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790427702] [2022-02-15 11:25:58,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790427702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:58,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:58,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:58,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872672453] [2022-02-15 11:25:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:58,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:58,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:58,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:58,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:58,380 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) [2022-02-15 11:25:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:58,867 INFO L93 Difference]: Finished difference Result 10902 states and 29343 transitions. [2022-02-15 11:25:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:25:58,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:58,884 INFO L225 Difference]: With dead ends: 10902 [2022-02-15 11:25:58,885 INFO L226 Difference]: Without dead ends: 10417 [2022-02-15 11:25:58,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:25:58,885 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 291 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3896 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 [2022-02-15 11:25:58,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3896 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:25:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-02-15 11:25:59,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 9054. [2022-02-15 11:25:59,082 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) [2022-02-15 11:25:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24432 transitions. [2022-02-15 11:25:59,098 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24432 transitions. Word has length 109 [2022-02-15 11:25:59,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:59,098 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24432 transitions. [2022-02-15 11:25:59,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24432 transitions. [2022-02-15 11:25:59,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:59,110 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:59,110 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] [2022-02-15 11:25:59,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 11:25:59,111 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:59,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:59,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423896, now seen corresponding path program 21 times [2022-02-15 11:25:59,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:59,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57902493] [2022-02-15 11:25:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:59,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:59,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:59,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57902493] [2022-02-15 11:25:59,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57902493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:59,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:59,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:59,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160137433] [2022-02-15 11:25:59,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:59,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:59,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:59,247 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) [2022-02-15 11:25:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:25:59,691 INFO L93 Difference]: Finished difference Result 10772 states and 28990 transitions. [2022-02-15 11:25:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:25:59,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:25:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:25:59,706 INFO L225 Difference]: With dead ends: 10772 [2022-02-15 11:25:59,706 INFO L226 Difference]: Without dead ends: 10244 [2022-02-15 11:25:59,706 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 [2022-02-15 11:25:59,707 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 [2022-02-15 11:25:59,707 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] [2022-02-15 11:25:59,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-02-15 11:25:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 9008. [2022-02-15 11:25:59,811 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) [2022-02-15 11:25:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 24330 transitions. [2022-02-15 11:25:59,828 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 24330 transitions. Word has length 109 [2022-02-15 11:25:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:25:59,828 INFO L470 AbstractCegarLoop]: Abstraction has 9008 states and 24330 transitions. [2022-02-15 11:25:59,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:25:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 24330 transitions. [2022-02-15 11:25:59,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:25:59,839 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:25:59,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:25:59,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 11:25:59,840 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:25:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:25:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1360774976, now seen corresponding path program 22 times [2022-02-15 11:25:59,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:25:59,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701834318] [2022-02-15 11:25:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:25:59,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:25:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:25:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:25:59,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:25:59,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701834318] [2022-02-15 11:25:59,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701834318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:25:59,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:25:59,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:25:59,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633676978] [2022-02-15 11:25:59,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:25:59,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:25:59,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:25:59,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:25:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:25:59,975 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) [2022-02-15 11:26:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:00,452 INFO L93 Difference]: Finished difference Result 11068 states and 29820 transitions. [2022-02-15 11:26:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:00,453 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 [2022-02-15 11:26:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:00,470 INFO L225 Difference]: With dead ends: 11068 [2022-02-15 11:26:00,470 INFO L226 Difference]: Without dead ends: 10583 [2022-02-15 11:26:00,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:26:00,471 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 233 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:00,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3827 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-02-15 11:26:00,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 9032. [2022-02-15 11:26:00,590 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) [2022-02-15 11:26:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24392 transitions. [2022-02-15 11:26:00,606 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24392 transitions. Word has length 109 [2022-02-15 11:26:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:00,607 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24392 transitions. [2022-02-15 11:26:00,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24392 transitions. [2022-02-15 11:26:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:00,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:00,618 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:00,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 11:26:00,619 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:00,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2042395630, now seen corresponding path program 23 times [2022-02-15 11:26:00,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:00,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244970563] [2022-02-15 11:26:00,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:00,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:00,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:00,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244970563] [2022-02-15 11:26:00,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244970563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:00,760 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:00,760 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:00,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844164596] [2022-02-15 11:26:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:00,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:00,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:00,761 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) [2022-02-15 11:26:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:01,338 INFO L93 Difference]: Finished difference Result 11034 states and 29731 transitions. [2022-02-15 11:26:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:01,339 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:01,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:01,355 INFO L225 Difference]: With dead ends: 11034 [2022-02-15 11:26:01,355 INFO L226 Difference]: Without dead ends: 10548 [2022-02-15 11:26:01,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:26:01,356 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:01,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3164 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-02-15 11:26:01,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 9028. [2022-02-15 11:26:01,482 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) [2022-02-15 11:26:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24381 transitions. [2022-02-15 11:26:01,501 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24381 transitions. Word has length 109 [2022-02-15 11:26:01,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:01,501 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24381 transitions. [2022-02-15 11:26:01,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24381 transitions. [2022-02-15 11:26:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:01,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:01,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:01,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 11:26:01,514 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:01,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:01,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1551884110, now seen corresponding path program 24 times [2022-02-15 11:26:01,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:01,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145201896] [2022-02-15 11:26:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:01,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:01,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:01,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145201896] [2022-02-15 11:26:01,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145201896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:01,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:01,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:01,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416533166] [2022-02-15 11:26:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:01,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:01,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:01,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:01,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:01,666 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) [2022-02-15 11:26:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:02,419 INFO L93 Difference]: Finished difference Result 11070 states and 29826 transitions. [2022-02-15 11:26:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:02,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:02,437 INFO L225 Difference]: With dead ends: 11070 [2022-02-15 11:26:02,437 INFO L226 Difference]: Without dead ends: 10544 [2022-02-15 11:26:02,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:26:02,438 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 278 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 3369 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 [2022-02-15 11:26:02,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 3369 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:02,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-02-15 11:26:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 9024. [2022-02-15 11:26:02,569 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) [2022-02-15 11:26:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24370 transitions. [2022-02-15 11:26:02,589 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24370 transitions. Word has length 109 [2022-02-15 11:26:02,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:02,589 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24370 transitions. [2022-02-15 11:26:02,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:02,589 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24370 transitions. [2022-02-15 11:26:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:02,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:02,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:02,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-15 11:26:02,602 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash 599006722, now seen corresponding path program 25 times [2022-02-15 11:26:02,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:02,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230047510] [2022-02-15 11:26:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:02,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:02,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:02,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230047510] [2022-02-15 11:26:02,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230047510] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:02,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:02,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:02,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401171245] [2022-02-15 11:26:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:02,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:02,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:02,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:02,749 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) [2022-02-15 11:26:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:03,555 INFO L93 Difference]: Finished difference Result 11158 states and 30040 transitions. [2022-02-15 11:26:03,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 11:26:03,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:03,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:03,579 INFO L225 Difference]: With dead ends: 11158 [2022-02-15 11:26:03,579 INFO L226 Difference]: Without dead ends: 10592 [2022-02-15 11:26:03,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 11:26:03,580 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 350 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:03,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 3242 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-02-15 11:26:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 9020. [2022-02-15 11:26:03,706 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) [2022-02-15 11:26:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24359 transitions. [2022-02-15 11:26:03,721 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24359 transitions. Word has length 109 [2022-02-15 11:26:03,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:03,721 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24359 transitions. [2022-02-15 11:26:03,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24359 transitions. [2022-02-15 11:26:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:03,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:03,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:03,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-15 11:26:03,732 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:03,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1903548090, now seen corresponding path program 26 times [2022-02-15 11:26:03,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:03,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620216568] [2022-02-15 11:26:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:03,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:03,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:03,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620216568] [2022-02-15 11:26:03,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620216568] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:03,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:03,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:03,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485988288] [2022-02-15 11:26:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:03,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:03,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:03,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:03,858 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) [2022-02-15 11:26:04,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:04,368 INFO L93 Difference]: Finished difference Result 11132 states and 29992 transitions. [2022-02-15 11:26:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:04,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:04,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:04,387 INFO L225 Difference]: With dead ends: 11132 [2022-02-15 11:26:04,387 INFO L226 Difference]: Without dead ends: 10647 [2022-02-15 11:26:04,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:04,388 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 251 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3864 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 [2022-02-15 11:26:04,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3864 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-02-15 11:26:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9032. [2022-02-15 11:26:04,520 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) [2022-02-15 11:26:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-15 11:26:04,537 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-15 11:26:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:04,537 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-15 11:26:04,537 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) [2022-02-15 11:26:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-15 11:26:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:04,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:04,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:04,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 11:26:04,548 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:04,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1221927436, now seen corresponding path program 27 times [2022-02-15 11:26:04,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:04,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896972469] [2022-02-15 11:26:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:04,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:04,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:04,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896972469] [2022-02-15 11:26:04,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896972469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:04,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:04,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:04,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804390782] [2022-02-15 11:26:04,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:04,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:04,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:04,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:04,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:04,683 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) [2022-02-15 11:26:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:05,205 INFO L93 Difference]: Finished difference Result 11090 states and 29881 transitions. [2022-02-15 11:26:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:05,221 INFO L225 Difference]: With dead ends: 11090 [2022-02-15 11:26:05,222 INFO L226 Difference]: Without dead ends: 10604 [2022-02-15 11:26:05,222 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 [2022-02-15 11:26:05,222 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 240 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 3195 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 [2022-02-15 11:26:05,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 3195 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-02-15 11:26:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 9028. [2022-02-15 11:26:05,346 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) [2022-02-15 11:26:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-15 11:26:05,364 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-15 11:26:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:05,364 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-15 11:26:05,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-15 11:26:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:05,376 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:05,376 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] [2022-02-15 11:26:05,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-15 11:26:05,377 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:05,377 INFO L85 PathProgramCache]: Analyzing trace with hash -521239880, now seen corresponding path program 28 times [2022-02-15 11:26:05,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:05,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721753274] [2022-02-15 11:26:05,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:05,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:05,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:05,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721753274] [2022-02-15 11:26:05,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721753274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:05,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:05,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:05,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228049939] [2022-02-15 11:26:05,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:05,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:05,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:05,520 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) [2022-02-15 11:26:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:06,168 INFO L93 Difference]: Finished difference Result 11218 states and 30213 transitions. [2022-02-15 11:26:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:06,168 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 [2022-02-15 11:26:06,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:06,185 INFO L225 Difference]: With dead ends: 11218 [2022-02-15 11:26:06,185 INFO L226 Difference]: Without dead ends: 10692 [2022-02-15 11:26:06,185 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 [2022-02-15 11:26:06,185 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 309 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2847 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 [2022-02-15 11:26:06,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2847 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-02-15 11:26:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9024. [2022-02-15 11:26:06,302 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) [2022-02-15 11:26:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-15 11:26:06,320 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-15 11:26:06,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:06,320 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-15 11:26:06,320 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) [2022-02-15 11:26:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-15 11:26:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:06,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:06,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:06,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 11:26:06,333 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:06,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash 556448148, now seen corresponding path program 29 times [2022-02-15 11:26:06,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:06,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092453993] [2022-02-15 11:26:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:06,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:06,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:06,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092453993] [2022-02-15 11:26:06,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092453993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:06,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:06,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:06,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360872430] [2022-02-15 11:26:06,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:06,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:06,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:06,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:06,487 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) [2022-02-15 11:26:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:07,093 INFO L93 Difference]: Finished difference Result 11220 states and 30205 transitions. [2022-02-15 11:26:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:26:07,093 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 [2022-02-15 11:26:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:07,115 INFO L225 Difference]: With dead ends: 11220 [2022-02-15 11:26:07,116 INFO L226 Difference]: Without dead ends: 10692 [2022-02-15 11:26:07,116 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 [2022-02-15 11:26:07,116 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 302 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3739 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 [2022-02-15 11:26:07,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3739 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:07,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-02-15 11:26:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9028. [2022-02-15 11:26:07,245 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) [2022-02-15 11:26:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-15 11:26:07,262 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-15 11:26:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:07,263 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-15 11:26:07,263 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) [2022-02-15 11:26:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-15 11:26:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:07,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:07,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:07,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 11:26:07,274 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:07,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1951584194, now seen corresponding path program 30 times [2022-02-15 11:26:07,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:07,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216046968] [2022-02-15 11:26:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:07,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:07,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:07,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216046968] [2022-02-15 11:26:07,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216046968] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:07,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:07,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:07,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757346084] [2022-02-15 11:26:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:07,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:07,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:07,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:07,406 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) [2022-02-15 11:26:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:07,933 INFO L93 Difference]: Finished difference Result 11072 states and 29819 transitions. [2022-02-15 11:26:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:07,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:07,954 INFO L225 Difference]: With dead ends: 11072 [2022-02-15 11:26:07,954 INFO L226 Difference]: Without dead ends: 10587 [2022-02-15 11:26:07,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:07,954 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 244 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 3201 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 [2022-02-15 11:26:07,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 3201 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:07,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10587 states. [2022-02-15 11:26:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 9032. [2022-02-15 11:26:08,113 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) [2022-02-15 11:26:08,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-15 11:26:08,132 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-15 11:26:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:08,132 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-15 11:26:08,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-15 11:26:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:08,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:08,145 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] [2022-02-15 11:26:08,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-15 11:26:08,145 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1269963540, now seen corresponding path program 31 times [2022-02-15 11:26:08,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:08,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531811134] [2022-02-15 11:26:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:08,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:08,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:08,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531811134] [2022-02-15 11:26:08,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531811134] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:08,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:08,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:08,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463021564] [2022-02-15 11:26:08,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:08,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:08,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:08,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:08,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:08,279 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) [2022-02-15 11:26:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:08,821 INFO L93 Difference]: Finished difference Result 10990 states and 29598 transitions. [2022-02-15 11:26:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:08,845 INFO L225 Difference]: With dead ends: 10990 [2022-02-15 11:26:08,846 INFO L226 Difference]: Without dead ends: 10492 [2022-02-15 11:26:08,846 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 [2022-02-15 11:26:08,846 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 225 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:08,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3384 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:08,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-02-15 11:26:09,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 9016. [2022-02-15 11:26:09,018 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) [2022-02-15 11:26:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24348 transitions. [2022-02-15 11:26:09,037 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24348 transitions. Word has length 109 [2022-02-15 11:26:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:09,037 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24348 transitions. [2022-02-15 11:26:09,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:09,038 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24348 transitions. [2022-02-15 11:26:09,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:09,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:09,050 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] [2022-02-15 11:26:09,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-15 11:26:09,050 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -821603778, now seen corresponding path program 32 times [2022-02-15 11:26:09,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:09,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547184982] [2022-02-15 11:26:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:09,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:09,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:09,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547184982] [2022-02-15 11:26:09,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547184982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:09,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:09,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:09,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590976294] [2022-02-15 11:26:09,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:09,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:09,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:09,190 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) [2022-02-15 11:26:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:09,778 INFO L93 Difference]: Finished difference Result 11168 states and 30091 transitions. [2022-02-15 11:26:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:09,778 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 [2022-02-15 11:26:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:09,793 INFO L225 Difference]: With dead ends: 11168 [2022-02-15 11:26:09,793 INFO L226 Difference]: Without dead ends: 10683 [2022-02-15 11:26:09,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:09,794 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 252 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 3408 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 [2022-02-15 11:26:09,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 3408 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:09,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-02-15 11:26:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-02-15 11:26:09,908 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) [2022-02-15 11:26:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-15 11:26:09,925 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-15 11:26:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:09,925 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-15 11:26:09,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-15 11:26:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:09,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:09,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:09,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-15 11:26:09,936 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash -139983124, now seen corresponding path program 33 times [2022-02-15 11:26:09,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:09,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079901215] [2022-02-15 11:26:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:09,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:10,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:10,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079901215] [2022-02-15 11:26:10,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079901215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:10,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:10,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:10,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155035268] [2022-02-15 11:26:10,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:10,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:10,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:10,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:10,080 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) [2022-02-15 11:26:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:10,702 INFO L93 Difference]: Finished difference Result 11126 states and 29980 transitions. [2022-02-15 11:26:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:10,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:10,720 INFO L225 Difference]: With dead ends: 11126 [2022-02-15 11:26:10,720 INFO L226 Difference]: Without dead ends: 10640 [2022-02-15 11:26:10,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:26:10,720 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 237 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 3609 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 [2022-02-15 11:26:10,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 3609 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:10,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-02-15 11:26:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 9028. [2022-02-15 11:26:10,858 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) [2022-02-15 11:26:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-15 11:26:10,878 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-15 11:26:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:10,879 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-15 11:26:10,879 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) [2022-02-15 11:26:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-15 11:26:10,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:10,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:10,892 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] [2022-02-15 11:26:10,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-15 11:26:10,892 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:10,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:10,892 INFO L85 PathProgramCache]: Analyzing trace with hash 560704432, now seen corresponding path program 34 times [2022-02-15 11:26:10,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:10,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27739073] [2022-02-15 11:26:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:10,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:11,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:11,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27739073] [2022-02-15 11:26:11,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27739073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:11,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:11,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:11,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000904468] [2022-02-15 11:26:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:11,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:11,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:11,023 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) [2022-02-15 11:26:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:11,659 INFO L93 Difference]: Finished difference Result 11234 states and 30257 transitions. [2022-02-15 11:26:11,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:26:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:11,676 INFO L225 Difference]: With dead ends: 11234 [2022-02-15 11:26:11,676 INFO L226 Difference]: Without dead ends: 10708 [2022-02-15 11:26:11,677 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 [2022-02-15 11:26:11,677 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 305 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 3566 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 [2022-02-15 11:26:11,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 3566 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-02-15 11:26:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9024. [2022-02-15 11:26:11,798 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) [2022-02-15 11:26:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-15 11:26:11,815 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-15 11:26:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:11,815 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-15 11:26:11,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-15 11:26:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:11,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:11,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:11,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-15 11:26:11,827 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:11,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1638392460, now seen corresponding path program 35 times [2022-02-15 11:26:11,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:11,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776593514] [2022-02-15 11:26:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:11,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:11,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:11,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776593514] [2022-02-15 11:26:11,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776593514] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:11,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:11,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:11,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965901684] [2022-02-15 11:26:11,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:11,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:11,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:11,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:11,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:11,957 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) [2022-02-15 11:26:12,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:12,559 INFO L93 Difference]: Finished difference Result 11332 states and 30513 transitions. [2022-02-15 11:26:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:12,560 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 [2022-02-15 11:26:12,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:12,577 INFO L225 Difference]: With dead ends: 11332 [2022-02-15 11:26:12,577 INFO L226 Difference]: Without dead ends: 10804 [2022-02-15 11:26:12,577 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 [2022-02-15 11:26:12,577 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 310 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:12,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 3752 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2022-02-15 11:26:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 9028. [2022-02-15 11:26:12,702 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) [2022-02-15 11:26:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-15 11:26:12,720 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-15 11:26:12,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:12,720 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-15 11:26:12,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:12,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-15 11:26:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:12,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:12,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:12,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-15 11:26:12,732 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash -869639882, now seen corresponding path program 36 times [2022-02-15 11:26:12,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:12,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908446099] [2022-02-15 11:26:12,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:12,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:12,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:12,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908446099] [2022-02-15 11:26:12,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908446099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:12,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:12,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:12,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163325463] [2022-02-15 11:26:12,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:12,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:12,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:12,857 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) [2022-02-15 11:26:13,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:13,354 INFO L93 Difference]: Finished difference Result 11168 states and 30083 transitions. [2022-02-15 11:26:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:13,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:13,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:13,370 INFO L225 Difference]: With dead ends: 11168 [2022-02-15 11:26:13,370 INFO L226 Difference]: Without dead ends: 10683 [2022-02-15 11:26:13,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:13,371 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 249 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3432 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 [2022-02-15 11:26:13,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3432 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-02-15 11:26:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-02-15 11:26:13,487 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) [2022-02-15 11:26:13,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-15 11:26:13,504 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-15 11:26:13,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:13,504 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-15 11:26:13,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-15 11:26:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:13,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:13,516 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] [2022-02-15 11:26:13,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-15 11:26:13,517 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash -188019228, now seen corresponding path program 37 times [2022-02-15 11:26:13,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:13,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514227934] [2022-02-15 11:26:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:13,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:13,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:13,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514227934] [2022-02-15 11:26:13,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514227934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:13,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:13,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:13,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365159883] [2022-02-15 11:26:13,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:13,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:13,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:13,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:13,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:13,642 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) [2022-02-15 11:26:14,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:14,134 INFO L93 Difference]: Finished difference Result 11102 states and 29906 transitions. [2022-02-15 11:26:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:14,134 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 [2022-02-15 11:26:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:14,152 INFO L225 Difference]: With dead ends: 11102 [2022-02-15 11:26:14,152 INFO L226 Difference]: Without dead ends: 10608 [2022-02-15 11:26:14,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:14,152 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 234 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 3598 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 [2022-02-15 11:26:14,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 3598 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:14,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2022-02-15 11:26:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 9020. [2022-02-15 11:26:14,276 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) [2022-02-15 11:26:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-02-15 11:26:14,293 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-02-15 11:26:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:14,293 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-02-15 11:26:14,294 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) [2022-02-15 11:26:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-02-15 11:26:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:14,305 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:14,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:14,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-15 11:26:14,305 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash 134914624, now seen corresponding path program 38 times [2022-02-15 11:26:14,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:14,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741901327] [2022-02-15 11:26:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:14,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:14,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:14,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741901327] [2022-02-15 11:26:14,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741901327] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:14,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:14,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:14,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577014719] [2022-02-15 11:26:14,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:14,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:14,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:14,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:14,451 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) [2022-02-15 11:26:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:15,281 INFO L93 Difference]: Finished difference Result 11353 states and 30552 transitions. [2022-02-15 11:26:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:26:15,282 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 [2022-02-15 11:26:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:15,305 INFO L225 Difference]: With dead ends: 11353 [2022-02-15 11:26:15,305 INFO L226 Difference]: Without dead ends: 10782 [2022-02-15 11:26:15,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:26:15,306 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 368 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 4068 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 [2022-02-15 11:26:15,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 4068 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-02-15 11:26:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9024. [2022-02-15 11:26:15,458 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) [2022-02-15 11:26:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-02-15 11:26:15,475 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-02-15 11:26:15,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:15,475 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-02-15 11:26:15,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:15,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-02-15 11:26:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:15,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:15,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:15,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-15 11:26:15,487 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1924477078, now seen corresponding path program 39 times [2022-02-15 11:26:15,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:15,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937954083] [2022-02-15 11:26:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:15,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:15,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:15,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937954083] [2022-02-15 11:26:15,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937954083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:15,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:15,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:15,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076519138] [2022-02-15 11:26:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:15,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:15,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:15,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:15,611 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) [2022-02-15 11:26:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:16,220 INFO L93 Difference]: Finished difference Result 11236 states and 30245 transitions. [2022-02-15 11:26:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:16,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:16,236 INFO L225 Difference]: With dead ends: 11236 [2022-02-15 11:26:16,236 INFO L226 Difference]: Without dead ends: 10708 [2022-02-15 11:26:16,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:26:16,237 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 [2022-02-15 11:26:16,237 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] [2022-02-15 11:26:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-02-15 11:26:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9028. [2022-02-15 11:26:16,347 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) [2022-02-15 11:26:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-02-15 11:26:16,364 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-02-15 11:26:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:16,364 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-02-15 11:26:16,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-02-15 11:26:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:16,375 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:16,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:16,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-15 11:26:16,375 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:16,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:16,375 INFO L85 PathProgramCache]: Analyzing trace with hash -583555264, now seen corresponding path program 40 times [2022-02-15 11:26:16,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:16,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399146185] [2022-02-15 11:26:16,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:16,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:16,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:16,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399146185] [2022-02-15 11:26:16,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399146185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:16,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:16,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:16,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271644651] [2022-02-15 11:26:16,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:16,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:16,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:16,516 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) [2022-02-15 11:26:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:17,028 INFO L93 Difference]: Finished difference Result 11088 states and 29859 transitions. [2022-02-15 11:26:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:17,028 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 [2022-02-15 11:26:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:17,045 INFO L225 Difference]: With dead ends: 11088 [2022-02-15 11:26:17,045 INFO L226 Difference]: Without dead ends: 10603 [2022-02-15 11:26:17,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:17,046 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 247 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:17,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3259 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:17,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-02-15 11:26:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 9032. [2022-02-15 11:26:17,175 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) [2022-02-15 11:26:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-02-15 11:26:17,192 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-02-15 11:26:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:17,192 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-02-15 11:26:17,193 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) [2022-02-15 11:26:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-02-15 11:26:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:17,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:17,204 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] [2022-02-15 11:26:17,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-15 11:26:17,204 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash 98065390, now seen corresponding path program 41 times [2022-02-15 11:26:17,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:17,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073974872] [2022-02-15 11:26:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:17,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:17,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:17,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073974872] [2022-02-15 11:26:17,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073974872] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:17,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:17,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:17,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347162512] [2022-02-15 11:26:17,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:17,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:17,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:17,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:17,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:17,331 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) [2022-02-15 11:26:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:17,824 INFO L93 Difference]: Finished difference Result 10990 states and 29594 transitions. [2022-02-15 11:26:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:17,841 INFO L225 Difference]: With dead ends: 10990 [2022-02-15 11:26:17,841 INFO L226 Difference]: Without dead ends: 10488 [2022-02-15 11:26:17,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:17,842 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 225 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:17,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3576 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-02-15 11:26:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 9012. [2022-02-15 11:26:17,963 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) [2022-02-15 11:26:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 24337 transitions. [2022-02-15 11:26:17,981 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 24337 transitions. Word has length 109 [2022-02-15 11:26:17,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:17,982 INFO L470 AbstractCegarLoop]: Abstraction has 9012 states and 24337 transitions. [2022-02-15 11:26:17,982 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) [2022-02-15 11:26:17,982 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 24337 transitions. [2022-02-15 11:26:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:17,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:17,994 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] [2022-02-15 11:26:17,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-15 11:26:17,994 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:17,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1814843604, now seen corresponding path program 42 times [2022-02-15 11:26:17,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:17,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466898739] [2022-02-15 11:26:17,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:17,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:18,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:18,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466898739] [2022-02-15 11:26:18,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466898739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:18,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:18,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:18,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590064980] [2022-02-15 11:26:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:18,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:18,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:18,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:18,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:18,131 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) [2022-02-15 11:26:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:18,639 INFO L93 Difference]: Finished difference Result 11024 states and 29695 transitions. [2022-02-15 11:26:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:18,640 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 [2022-02-15 11:26:18,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:18,656 INFO L225 Difference]: With dead ends: 11024 [2022-02-15 11:26:18,657 INFO L226 Difference]: Without dead ends: 10539 [2022-02-15 11:26:18,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:18,657 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 249 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:18,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3835 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:18,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-02-15 11:26:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-02-15 11:26:18,781 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) [2022-02-15 11:26:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-15 11:26:18,800 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-15 11:26:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:18,800 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-15 11:26:18,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-15 11:26:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:18,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:18,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:18,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-15 11:26:18,813 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1133222950, now seen corresponding path program 43 times [2022-02-15 11:26:18,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:18,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877911888] [2022-02-15 11:26:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:18,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:18,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:18,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877911888] [2022-02-15 11:26:18,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877911888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:18,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:18,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:18,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577820411] [2022-02-15 11:26:18,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:18,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:18,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:18,942 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) [2022-02-15 11:26:19,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:19,478 INFO L93 Difference]: Finished difference Result 10982 states and 29584 transitions. [2022-02-15 11:26:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:19,478 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 [2022-02-15 11:26:19,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:19,495 INFO L225 Difference]: With dead ends: 10982 [2022-02-15 11:26:19,495 INFO L226 Difference]: Without dead ends: 10496 [2022-02-15 11:26:19,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:26:19,496 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 232 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3591 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 [2022-02-15 11:26:19,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3591 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-02-15 11:26:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 9028. [2022-02-15 11:26:19,644 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) [2022-02-15 11:26:19,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-15 11:26:19,661 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-15 11:26:19,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:19,661 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-15 11:26:19,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-15 11:26:19,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:19,673 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:19,673 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:19,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-15 11:26:19,674 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:19,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash -432535394, now seen corresponding path program 44 times [2022-02-15 11:26:19,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:19,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529678959] [2022-02-15 11:26:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:19,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:19,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:19,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529678959] [2022-02-15 11:26:19,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529678959] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:19,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:19,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:19,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985088921] [2022-02-15 11:26:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:19,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:19,805 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) [2022-02-15 11:26:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:20,418 INFO L93 Difference]: Finished difference Result 11050 states and 29751 transitions. [2022-02-15 11:26:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:26:20,419 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:20,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:20,435 INFO L225 Difference]: With dead ends: 11050 [2022-02-15 11:26:20,435 INFO L226 Difference]: Without dead ends: 10524 [2022-02-15 11:26:20,435 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 [2022-02-15 11:26:20,436 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 [2022-02-15 11:26:20,436 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] [2022-02-15 11:26:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-02-15 11:26:20,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 9024. [2022-02-15 11:26:20,562 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) [2022-02-15 11:26:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-15 11:26:20,582 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-15 11:26:20,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:20,582 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-15 11:26:20,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-15 11:26:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:20,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:20,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:20,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-15 11:26:20,595 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:20,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:20,595 INFO L85 PathProgramCache]: Analyzing trace with hash 645152634, now seen corresponding path program 45 times [2022-02-15 11:26:20,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:20,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758627747] [2022-02-15 11:26:20,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:20,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:20,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:20,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758627747] [2022-02-15 11:26:20,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758627747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:20,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:20,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:20,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241520300] [2022-02-15 11:26:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:20,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:20,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:20,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:20,726 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) [2022-02-15 11:26:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:21,353 INFO L93 Difference]: Finished difference Result 11180 states and 30095 transitions. [2022-02-15 11:26:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:21,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:21,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:21,370 INFO L225 Difference]: With dead ends: 11180 [2022-02-15 11:26:21,371 INFO L226 Difference]: Without dead ends: 10652 [2022-02-15 11:26:21,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:26:21,371 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 335 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3623 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 [2022-02-15 11:26:21,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3623 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-02-15 11:26:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 9028. [2022-02-15 11:26:21,495 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) [2022-02-15 11:26:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-15 11:26:21,513 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-15 11:26:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-15 11:26:21,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-15 11:26:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:21,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:21,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:21,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-15 11:26:21,525 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:21,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1862879708, now seen corresponding path program 46 times [2022-02-15 11:26:21,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:21,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006163081] [2022-02-15 11:26:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:21,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:21,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:21,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006163081] [2022-02-15 11:26:21,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006163081] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:21,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:21,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:21,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273547580] [2022-02-15 11:26:21,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:21,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:21,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:21,653 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) [2022-02-15 11:26:22,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:22,166 INFO L93 Difference]: Finished difference Result 11016 states and 29665 transitions. [2022-02-15 11:26:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:22,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:22,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:22,183 INFO L225 Difference]: With dead ends: 11016 [2022-02-15 11:26:22,183 INFO L226 Difference]: Without dead ends: 10531 [2022-02-15 11:26:22,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:22,184 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 266 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3533 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 [2022-02-15 11:26:22,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3533 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:22,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-02-15 11:26:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9032. [2022-02-15 11:26:22,317 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) [2022-02-15 11:26:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-15 11:26:22,336 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-15 11:26:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:22,336 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-15 11:26:22,336 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) [2022-02-15 11:26:22,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-15 11:26:22,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:22,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:22,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:22,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-15 11:26:22,349 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:22,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:22,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1181259054, now seen corresponding path program 47 times [2022-02-15 11:26:22,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:22,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276857090] [2022-02-15 11:26:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:22,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:22,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:22,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276857090] [2022-02-15 11:26:22,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276857090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:22,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:22,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:22,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620395908] [2022-02-15 11:26:22,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:22,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:22,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:22,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:22,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:22,479 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) [2022-02-15 11:26:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:22,978 INFO L93 Difference]: Finished difference Result 10950 states and 29488 transitions. [2022-02-15 11:26:22,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:22,978 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 [2022-02-15 11:26:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:22,996 INFO L225 Difference]: With dead ends: 10950 [2022-02-15 11:26:22,996 INFO L226 Difference]: Without dead ends: 10456 [2022-02-15 11:26:22,997 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 [2022-02-15 11:26:22,997 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 254 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3745 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 [2022-02-15 11:26:22,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3745 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-02-15 11:26:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 9020. [2022-02-15 11:26:23,127 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) [2022-02-15 11:26:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-02-15 11:26:23,143 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-02-15 11:26:23,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:23,143 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-02-15 11:26:23,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-02-15 11:26:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:23,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:23,155 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] [2022-02-15 11:26:23,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-15 11:26:23,155 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash -858325202, now seen corresponding path program 48 times [2022-02-15 11:26:23,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:23,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819126836] [2022-02-15 11:26:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:23,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:23,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:23,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819126836] [2022-02-15 11:26:23,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819126836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:23,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:23,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:23,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516669930] [2022-02-15 11:26:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:23,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:23,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:23,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:23,283 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) [2022-02-15 11:26:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:23,982 INFO L93 Difference]: Finished difference Result 11313 states and 30442 transitions. [2022-02-15 11:26:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:26:23,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:23,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:23,999 INFO L225 Difference]: With dead ends: 11313 [2022-02-15 11:26:23,999 INFO L226 Difference]: Without dead ends: 10742 [2022-02-15 11:26:24,000 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 [2022-02-15 11:26:24,000 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 400 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-15 11:26:24,000 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] [2022-02-15 11:26:24,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-02-15 11:26:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 9024. [2022-02-15 11:26:24,118 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) [2022-02-15 11:26:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-02-15 11:26:24,136 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-02-15 11:26:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:24,136 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-02-15 11:26:24,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-02-15 11:26:24,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:24,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:24,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:24,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-15 11:26:24,149 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:24,150 INFO L85 PathProgramCache]: Analyzing trace with hash 931237252, now seen corresponding path program 49 times [2022-02-15 11:26:24,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:24,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989093202] [2022-02-15 11:26:24,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:24,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:24,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:24,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989093202] [2022-02-15 11:26:24,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989093202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:24,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:24,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:24,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077492483] [2022-02-15 11:26:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:24,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:24,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:24,283 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) [2022-02-15 11:26:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:24,895 INFO L93 Difference]: Finished difference Result 11188 states and 30113 transitions. [2022-02-15 11:26:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:24,895 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 [2022-02-15 11:26:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:24,913 INFO L225 Difference]: With dead ends: 11188 [2022-02-15 11:26:24,913 INFO L226 Difference]: Without dead ends: 10660 [2022-02-15 11:26:24,913 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 [2022-02-15 11:26:24,913 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 334 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-15 11:26:24,914 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] [2022-02-15 11:26:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-02-15 11:26:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9028. [2022-02-15 11:26:25,041 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) [2022-02-15 11:26:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-02-15 11:26:25,058 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-02-15 11:26:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:25,059 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-02-15 11:26:25,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-02-15 11:26:25,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:25,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:25,070 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] [2022-02-15 11:26:25,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-15 11:26:25,070 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:25,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1576795090, now seen corresponding path program 50 times [2022-02-15 11:26:25,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:25,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329185876] [2022-02-15 11:26:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:25,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:25,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:25,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329185876] [2022-02-15 11:26:25,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329185876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:25,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:25,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:25,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83131259] [2022-02-15 11:26:25,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:25,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:25,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:25,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:25,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:25,212 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) [2022-02-15 11:26:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:25,709 INFO L93 Difference]: Finished difference Result 11024 states and 29683 transitions. [2022-02-15 11:26:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:25,710 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 [2022-02-15 11:26:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:25,725 INFO L225 Difference]: With dead ends: 11024 [2022-02-15 11:26:25,725 INFO L226 Difference]: Without dead ends: 10539 [2022-02-15 11:26:25,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:25,726 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 267 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:25,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3584 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-02-15 11:26:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-02-15 11:26:25,832 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) [2022-02-15 11:26:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-02-15 11:26:25,849 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-02-15 11:26:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:25,849 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-02-15 11:26:25,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-02-15 11:26:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:25,859 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:25,860 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] [2022-02-15 11:26:25,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-15 11:26:25,860 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:25,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash -895174436, now seen corresponding path program 51 times [2022-02-15 11:26:25,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:25,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689339363] [2022-02-15 11:26:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:25,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:25,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:25,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689339363] [2022-02-15 11:26:25,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689339363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:25,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:25,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:25,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418694876] [2022-02-15 11:26:25,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:25,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:25,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:25,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:25,982 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) [2022-02-15 11:26:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:26,472 INFO L93 Difference]: Finished difference Result 10950 states and 29484 transitions. [2022-02-15 11:26:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:26,473 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 [2022-02-15 11:26:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:26,487 INFO L225 Difference]: With dead ends: 10950 [2022-02-15 11:26:26,488 INFO L226 Difference]: Without dead ends: 10452 [2022-02-15 11:26:26,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:26,488 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 [2022-02-15 11:26:26,488 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] [2022-02-15 11:26:26,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-02-15 11:26:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 9016. [2022-02-15 11:26:26,599 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) [2022-02-15 11:26:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24344 transitions. [2022-02-15 11:26:26,616 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24344 transitions. Word has length 109 [2022-02-15 11:26:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:26,616 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24344 transitions. [2022-02-15 11:26:26,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24344 transitions. [2022-02-15 11:26:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:26,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:26,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:26,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-15 11:26:26,628 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash -220682792, now seen corresponding path program 52 times [2022-02-15 11:26:26,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:26,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655429062] [2022-02-15 11:26:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:26,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:26,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:26,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655429062] [2022-02-15 11:26:26,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655429062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:26,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:26,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:26,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290618299] [2022-02-15 11:26:26,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:26,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:26,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:26,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:26,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:26,756 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) [2022-02-15 11:26:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:27,568 INFO L93 Difference]: Finished difference Result 11293 states and 30362 transitions. [2022-02-15 11:26:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 11:26:27,568 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 [2022-02-15 11:26:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:27,586 INFO L225 Difference]: With dead ends: 11293 [2022-02-15 11:26:27,587 INFO L226 Difference]: Without dead ends: 10679 [2022-02-15 11:26:27,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-02-15 11:26:27,588 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 485 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 3822 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 [2022-02-15 11:26:27,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 3822 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:27,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10679 states. [2022-02-15 11:26:27,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10679 to 9020. [2022-02-15 11:26:27,722 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) [2022-02-15 11:26:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24351 transitions. [2022-02-15 11:26:27,741 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24351 transitions. Word has length 109 [2022-02-15 11:26:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24351 transitions. [2022-02-15 11:26:27,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24351 transitions. [2022-02-15 11:26:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:27,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:27,753 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] [2022-02-15 11:26:27,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-15 11:26:27,754 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:27,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1277978946, now seen corresponding path program 53 times [2022-02-15 11:26:27,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:27,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246946503] [2022-02-15 11:26:27,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:27,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:27,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:27,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246946503] [2022-02-15 11:26:27,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246946503] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:27,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:27,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:27,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713846008] [2022-02-15 11:26:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:27,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:27,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:27,894 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) [2022-02-15 11:26:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:28,676 INFO L93 Difference]: Finished difference Result 11153 states and 29998 transitions. [2022-02-15 11:26:28,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:26:28,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:28,693 INFO L225 Difference]: With dead ends: 11153 [2022-02-15 11:26:28,693 INFO L226 Difference]: Without dead ends: 10582 [2022-02-15 11:26:28,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:26:28,694 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 413 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3112 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 [2022-02-15 11:26:28,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3112 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:28,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-02-15 11:26:28,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 9024. [2022-02-15 11:26:28,811 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) [2022-02-15 11:26:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24358 transitions. [2022-02-15 11:26:28,829 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24358 transitions. Word has length 109 [2022-02-15 11:26:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:28,829 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24358 transitions. [2022-02-15 11:26:28,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24358 transitions. [2022-02-15 11:26:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:28,841 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:28,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:28,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-15 11:26:28,841 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash 511583508, now seen corresponding path program 54 times [2022-02-15 11:26:28,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:28,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224632315] [2022-02-15 11:26:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:28,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:28,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:28,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:28,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224632315] [2022-02-15 11:26:28,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224632315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:28,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:28,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:28,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182913207] [2022-02-15 11:26:28,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:28,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:28,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:28,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:28,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:28,966 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) [2022-02-15 11:26:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:29,587 INFO L93 Difference]: Finished difference Result 11040 states and 29702 transitions. [2022-02-15 11:26:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:29,587 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:29,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:29,605 INFO L225 Difference]: With dead ends: 11040 [2022-02-15 11:26:29,605 INFO L226 Difference]: Without dead ends: 10512 [2022-02-15 11:26:29,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:26:29,606 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 [2022-02-15 11:26:29,606 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] [2022-02-15 11:26:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2022-02-15 11:26:29,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9028. [2022-02-15 11:26:29,769 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) [2022-02-15 11:26:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24365 transitions. [2022-02-15 11:26:29,785 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24365 transitions. Word has length 109 [2022-02-15 11:26:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:29,785 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24365 transitions. [2022-02-15 11:26:29,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24365 transitions. [2022-02-15 11:26:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:29,797 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:29,797 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] [2022-02-15 11:26:29,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-15 11:26:29,797 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:29,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1996448834, now seen corresponding path program 55 times [2022-02-15 11:26:29,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:29,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158337484] [2022-02-15 11:26:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:29,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:29,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:29,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158337484] [2022-02-15 11:26:29,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158337484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:29,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:29,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:29,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559954555] [2022-02-15 11:26:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:29,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:29,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:29,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:29,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:29,920 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) [2022-02-15 11:26:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:30,401 INFO L93 Difference]: Finished difference Result 10900 states and 29338 transitions. [2022-02-15 11:26:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:30,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:30,417 INFO L225 Difference]: With dead ends: 10900 [2022-02-15 11:26:30,417 INFO L226 Difference]: Without dead ends: 10415 [2022-02-15 11:26:30,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:30,418 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 289 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:30,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3738 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2022-02-15 11:26:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 9032. [2022-02-15 11:26:30,564 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) [2022-02-15 11:26:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24372 transitions. [2022-02-15 11:26:30,581 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24372 transitions. Word has length 109 [2022-02-15 11:26:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:30,581 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24372 transitions. [2022-02-15 11:26:30,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24372 transitions. [2022-02-15 11:26:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:30,592 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:30,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:30,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-15 11:26:30,593 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1314828180, now seen corresponding path program 56 times [2022-02-15 11:26:30,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:30,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560549903] [2022-02-15 11:26:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:30,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:30,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:30,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560549903] [2022-02-15 11:26:30,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560549903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:30,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:30,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:30,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544382565] [2022-02-15 11:26:30,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:30,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:30,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:30,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:30,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:30,710 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) [2022-02-15 11:26:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:31,151 INFO L93 Difference]: Finished difference Result 10750 states and 28930 transitions. [2022-02-15 11:26:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:26:31,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:31,167 INFO L225 Difference]: With dead ends: 10750 [2022-02-15 11:26:31,167 INFO L226 Difference]: Without dead ends: 10218 [2022-02-15 11:26:31,168 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 [2022-02-15 11:26:31,168 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 247 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:31,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3649 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-02-15 11:26:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8982. [2022-02-15 11:26:31,284 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) [2022-02-15 11:26:31,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 24263 transitions. [2022-02-15 11:26:31,301 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 24263 transitions. Word has length 109 [2022-02-15 11:26:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:31,301 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 24263 transitions. [2022-02-15 11:26:31,301 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) [2022-02-15 11:26:31,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 24263 transitions. [2022-02-15 11:26:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:31,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:31,313 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] [2022-02-15 11:26:31,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-15 11:26:31,313 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1562377566, now seen corresponding path program 57 times [2022-02-15 11:26:31,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:31,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566729705] [2022-02-15 11:26:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:31,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:31,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:31,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566729705] [2022-02-15 11:26:31,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566729705] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:31,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:31,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:31,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385245438] [2022-02-15 11:26:31,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:31,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:31,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:31,430 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) [2022-02-15 11:26:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:31,917 INFO L93 Difference]: Finished difference Result 11458 states and 30897 transitions. [2022-02-15 11:26:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:31,918 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:31,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:31,935 INFO L225 Difference]: With dead ends: 11458 [2022-02-15 11:26:31,936 INFO L226 Difference]: Without dead ends: 10973 [2022-02-15 11:26:31,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:26:31,936 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 207 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:31,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3434 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:31,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-02-15 11:26:32,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 9010. [2022-02-15 11:26:32,060 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) [2022-02-15 11:26:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24336 transitions. [2022-02-15 11:26:32,079 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24336 transitions. Word has length 109 [2022-02-15 11:26:32,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:32,080 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24336 transitions. [2022-02-15 11:26:32,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:32,080 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24336 transitions. [2022-02-15 11:26:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:32,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:32,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:32,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-15 11:26:32,092 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:32,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash -880756912, now seen corresponding path program 58 times [2022-02-15 11:26:32,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:32,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738018064] [2022-02-15 11:26:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:32,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:32,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:32,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738018064] [2022-02-15 11:26:32,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738018064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:32,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:32,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:32,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384942898] [2022-02-15 11:26:32,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:32,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:32,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:32,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:32,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:32,236 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) [2022-02-15 11:26:32,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:32,735 INFO L93 Difference]: Finished difference Result 11424 states and 30808 transitions. [2022-02-15 11:26:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:32,735 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 [2022-02-15 11:26:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:32,753 INFO L225 Difference]: With dead ends: 11424 [2022-02-15 11:26:32,753 INFO L226 Difference]: Without dead ends: 10938 [2022-02-15 11:26:32,753 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 [2022-02-15 11:26:32,754 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 [2022-02-15 11:26:32,754 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] [2022-02-15 11:26:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-02-15 11:26:32,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9006. [2022-02-15 11:26:32,891 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) [2022-02-15 11:26:32,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24325 transitions. [2022-02-15 11:26:32,910 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24325 transitions. Word has length 109 [2022-02-15 11:26:32,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:32,911 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24325 transitions. [2022-02-15 11:26:32,911 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) [2022-02-15 11:26:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24325 transitions. [2022-02-15 11:26:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:32,923 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:32,923 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] [2022-02-15 11:26:32,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-15 11:26:32,923 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash -180069356, now seen corresponding path program 59 times [2022-02-15 11:26:32,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:32,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396818814] [2022-02-15 11:26:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:32,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:33,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:33,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396818814] [2022-02-15 11:26:33,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396818814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:33,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:33,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:33,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246290534] [2022-02-15 11:26:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:33,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:33,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:33,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:33,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:33,047 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) [2022-02-15 11:26:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:33,746 INFO L93 Difference]: Finished difference Result 11460 states and 30903 transitions. [2022-02-15 11:26:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:33,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:33,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:33,763 INFO L225 Difference]: With dead ends: 11460 [2022-02-15 11:26:33,764 INFO L226 Difference]: Without dead ends: 10934 [2022-02-15 11:26:33,764 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 [2022-02-15 11:26:33,764 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 253 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:33,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3512 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-02-15 11:26:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 9002. [2022-02-15 11:26:33,895 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) [2022-02-15 11:26:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24314 transitions. [2022-02-15 11:26:33,913 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24314 transitions. Word has length 109 [2022-02-15 11:26:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:33,913 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24314 transitions. [2022-02-15 11:26:33,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24314 transitions. [2022-02-15 11:26:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:33,925 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:33,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:33,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-15 11:26:33,925 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:33,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1970821476, now seen corresponding path program 60 times [2022-02-15 11:26:33,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:33,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759101611] [2022-02-15 11:26:33,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:33,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:34,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:34,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759101611] [2022-02-15 11:26:34,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759101611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:34,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:34,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:34,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480491773] [2022-02-15 11:26:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:34,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:34,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:34,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:34,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:34,051 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) [2022-02-15 11:26:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:34,831 INFO L93 Difference]: Finished difference Result 11632 states and 31348 transitions. [2022-02-15 11:26:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:26:34,832 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:34,850 INFO L225 Difference]: With dead ends: 11632 [2022-02-15 11:26:34,850 INFO L226 Difference]: Without dead ends: 11066 [2022-02-15 11:26:34,851 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 [2022-02-15 11:26:34,851 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 330 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:34,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 2953 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-02-15 11:26:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8998. [2022-02-15 11:26:34,980 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) [2022-02-15 11:26:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24303 transitions. [2022-02-15 11:26:34,999 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24303 transitions. Word has length 109 [2022-02-15 11:26:35,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:35,000 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24303 transitions. [2022-02-15 11:26:35,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24303 transitions. [2022-02-15 11:26:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:35,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:35,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:35,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-15 11:26:35,013 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash -531733336, now seen corresponding path program 61 times [2022-02-15 11:26:35,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:35,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759907338] [2022-02-15 11:26:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:35,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:35,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:35,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759907338] [2022-02-15 11:26:35,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759907338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:35,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:35,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:35,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683772818] [2022-02-15 11:26:35,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:35,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:35,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:35,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:35,151 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) [2022-02-15 11:26:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:35,682 INFO L93 Difference]: Finished difference Result 11534 states and 31102 transitions. [2022-02-15 11:26:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:35,683 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 [2022-02-15 11:26:35,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:35,700 INFO L225 Difference]: With dead ends: 11534 [2022-02-15 11:26:35,700 INFO L226 Difference]: Without dead ends: 11049 [2022-02-15 11:26:35,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:26:35,700 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 214 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3267 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 [2022-02-15 11:26:35,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3267 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:35,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2022-02-15 11:26:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 9010. [2022-02-15 11:26:35,835 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) [2022-02-15 11:26:35,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-15 11:26:35,855 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-15 11:26:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:35,855 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-15 11:26:35,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-15 11:26:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:35,868 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:35,868 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] [2022-02-15 11:26:35,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-15 11:26:35,868 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash 149887318, now seen corresponding path program 62 times [2022-02-15 11:26:35,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:35,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924859580] [2022-02-15 11:26:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:35,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:36,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:36,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924859580] [2022-02-15 11:26:36,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924859580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:36,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:36,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:36,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758183743] [2022-02-15 11:26:36,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:36,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:36,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:36,002 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) [2022-02-15 11:26:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:36,541 INFO L93 Difference]: Finished difference Result 11492 states and 30991 transitions. [2022-02-15 11:26:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:36,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:36,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:36,559 INFO L225 Difference]: With dead ends: 11492 [2022-02-15 11:26:36,559 INFO L226 Difference]: Without dead ends: 11006 [2022-02-15 11:26:36,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:36,559 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 [2022-02-15 11:26:36,559 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] [2022-02-15 11:26:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-02-15 11:26:36,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 9006. [2022-02-15 11:26:36,691 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) [2022-02-15 11:26:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-15 11:26:36,709 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-15 11:26:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:36,709 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-15 11:26:36,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-15 11:26:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:36,720 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:36,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:36,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-15 11:26:36,721 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:36,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:36,721 INFO L85 PathProgramCache]: Analyzing trace with hash 850574874, now seen corresponding path program 63 times [2022-02-15 11:26:36,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:36,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163281899] [2022-02-15 11:26:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:36,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:36,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:36,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163281899] [2022-02-15 11:26:36,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163281899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:36,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:36,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:36,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477958930] [2022-02-15 11:26:36,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:36,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:36,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:36,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:36,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:36,848 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) [2022-02-15 11:26:37,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:37,571 INFO L93 Difference]: Finished difference Result 11620 states and 31323 transitions. [2022-02-15 11:26:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:37,571 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:37,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:37,594 INFO L225 Difference]: With dead ends: 11620 [2022-02-15 11:26:37,594 INFO L226 Difference]: Without dead ends: 11094 [2022-02-15 11:26:37,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:26:37,595 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:37,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2964 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-15 11:26:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9002. [2022-02-15 11:26:37,716 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) [2022-02-15 11:26:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-15 11:26:37,733 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-15 11:26:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:37,733 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-15 11:26:37,733 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) [2022-02-15 11:26:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-15 11:26:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:37,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:37,744 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] [2022-02-15 11:26:37,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-15 11:26:37,744 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:37,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262902, now seen corresponding path program 64 times [2022-02-15 11:26:37,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:37,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646053714] [2022-02-15 11:26:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:37,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:37,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:37,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646053714] [2022-02-15 11:26:37,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646053714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:37,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:37,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:37,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729866121] [2022-02-15 11:26:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:37,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:37,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:37,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:37,882 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) [2022-02-15 11:26:38,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:38,518 INFO L93 Difference]: Finished difference Result 11622 states and 31315 transitions. [2022-02-15 11:26:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:26:38,518 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 [2022-02-15 11:26:38,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:38,536 INFO L225 Difference]: With dead ends: 11622 [2022-02-15 11:26:38,537 INFO L226 Difference]: Without dead ends: 11094 [2022-02-15 11:26:38,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:26:38,537 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 271 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:26:38,537 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] [2022-02-15 11:26:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-15 11:26:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9006. [2022-02-15 11:26:38,664 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) [2022-02-15 11:26:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:26:38,683 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:26:38,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:38,683 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:26:38,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:38,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:26:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:38,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:38,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:38,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-15 11:26:38,695 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:38,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -579769440, now seen corresponding path program 65 times [2022-02-15 11:26:38,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:38,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301742497] [2022-02-15 11:26:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:38,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:38,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:38,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301742497] [2022-02-15 11:26:38,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301742497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:38,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:38,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:38,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99208795] [2022-02-15 11:26:38,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:38,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:38,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:38,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:38,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:38,825 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) [2022-02-15 11:26:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:39,355 INFO L93 Difference]: Finished difference Result 11474 states and 30929 transitions. [2022-02-15 11:26:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:39,356 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 [2022-02-15 11:26:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:39,373 INFO L225 Difference]: With dead ends: 11474 [2022-02-15 11:26:39,373 INFO L226 Difference]: Without dead ends: 10989 [2022-02-15 11:26:39,374 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 [2022-02-15 11:26:39,374 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 [2022-02-15 11:26:39,374 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] [2022-02-15 11:26:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-02-15 11:26:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 9010. [2022-02-15 11:26:39,548 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) [2022-02-15 11:26:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-02-15 11:26:39,566 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-02-15 11:26:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:39,566 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-02-15 11:26:39,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-02-15 11:26:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:39,578 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:39,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:39,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-15 11:26:39,578 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash 101851214, now seen corresponding path program 66 times [2022-02-15 11:26:39,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:39,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447989542] [2022-02-15 11:26:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:39,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:39,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:39,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447989542] [2022-02-15 11:26:39,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447989542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:39,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:39,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:39,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268504703] [2022-02-15 11:26:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:39,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:39,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:39,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:39,699 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) [2022-02-15 11:26:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:40,182 INFO L93 Difference]: Finished difference Result 11392 states and 30708 transitions. [2022-02-15 11:26:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:40,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:40,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:40,199 INFO L225 Difference]: With dead ends: 11392 [2022-02-15 11:26:40,199 INFO L226 Difference]: Without dead ends: 10894 [2022-02-15 11:26:40,199 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 [2022-02-15 11:26:40,200 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 [2022-02-15 11:26:40,200 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] [2022-02-15 11:26:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-02-15 11:26:40,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 8994. [2022-02-15 11:26:40,324 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) [2022-02-15 11:26:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24292 transitions. [2022-02-15 11:26:40,341 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24292 transitions. Word has length 109 [2022-02-15 11:26:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:40,341 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24292 transitions. [2022-02-15 11:26:40,342 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) [2022-02-15 11:26:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24292 transitions. [2022-02-15 11:26:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:40,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:40,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:40,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-15 11:26:40,353 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 550210976, now seen corresponding path program 67 times [2022-02-15 11:26:40,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:40,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161911995] [2022-02-15 11:26:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:40,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:40,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:40,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161911995] [2022-02-15 11:26:40,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161911995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:40,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:40,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:40,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907509764] [2022-02-15 11:26:40,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:40,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:40,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:40,473 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) [2022-02-15 11:26:40,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:40,961 INFO L93 Difference]: Finished difference Result 11410 states and 30761 transitions. [2022-02-15 11:26:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:40,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:40,979 INFO L225 Difference]: With dead ends: 11410 [2022-02-15 11:26:40,979 INFO L226 Difference]: Without dead ends: 10925 [2022-02-15 11:26:40,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:26:40,979 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 209 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3261 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 [2022-02-15 11:26:40,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3261 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-02-15 11:26:41,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 9010. [2022-02-15 11:26:41,110 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) [2022-02-15 11:26:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-15 11:26:41,128 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-15 11:26:41,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:41,129 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-15 11:26:41,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-15 11:26:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:41,140 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:41,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:41,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-15 11:26:41,140 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1231831630, now seen corresponding path program 68 times [2022-02-15 11:26:41,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:41,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410643250] [2022-02-15 11:26:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:41,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:41,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:41,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410643250] [2022-02-15 11:26:41,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410643250] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:41,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:41,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:41,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008997406] [2022-02-15 11:26:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:41,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:41,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:41,267 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) [2022-02-15 11:26:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:41,772 INFO L93 Difference]: Finished difference Result 11368 states and 30650 transitions. [2022-02-15 11:26:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:41,789 INFO L225 Difference]: With dead ends: 11368 [2022-02-15 11:26:41,790 INFO L226 Difference]: Without dead ends: 10882 [2022-02-15 11:26:41,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:41,790 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3085 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 [2022-02-15 11:26:41,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3085 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-02-15 11:26:41,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9006. [2022-02-15 11:26:41,914 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) [2022-02-15 11:26:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-15 11:26:41,929 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-15 11:26:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:41,929 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-15 11:26:41,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-15 11:26:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:41,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:41,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:41,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-15 11:26:41,940 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1932519186, now seen corresponding path program 69 times [2022-02-15 11:26:41,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:41,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863953637] [2022-02-15 11:26:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:41,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:42,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:42,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863953637] [2022-02-15 11:26:42,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863953637] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:42,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:42,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:42,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484688763] [2022-02-15 11:26:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:42,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:42,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:42,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:42,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:42,062 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) [2022-02-15 11:26:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:42,677 INFO L93 Difference]: Finished difference Result 11496 states and 30982 transitions. [2022-02-15 11:26:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:26:42,678 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:42,694 INFO L225 Difference]: With dead ends: 11496 [2022-02-15 11:26:42,694 INFO L226 Difference]: Without dead ends: 10970 [2022-02-15 11:26:42,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:26:42,694 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 267 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3313 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 [2022-02-15 11:26:42,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3313 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:42,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2022-02-15 11:26:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 9002. [2022-02-15 11:26:42,805 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) [2022-02-15 11:26:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-15 11:26:42,822 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-15 11:26:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:42,822 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-15 11:26:42,822 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) [2022-02-15 11:26:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-15 11:26:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:42,833 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:42,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:42,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-15 11:26:42,834 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1284760082, now seen corresponding path program 70 times [2022-02-15 11:26:42,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:42,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170611972] [2022-02-15 11:26:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:42,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:42,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:42,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170611972] [2022-02-15 11:26:42,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170611972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:42,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:42,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:42,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461700816] [2022-02-15 11:26:42,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:42,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:42,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:42,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:42,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:42,980 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) [2022-02-15 11:26:43,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:43,650 INFO L93 Difference]: Finished difference Result 11578 states and 31194 transitions. [2022-02-15 11:26:43,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:43,667 INFO L225 Difference]: With dead ends: 11578 [2022-02-15 11:26:43,668 INFO L226 Difference]: Without dead ends: 11050 [2022-02-15 11:26:43,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:26:43,668 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 268 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3104 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 [2022-02-15 11:26:43,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3104 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-02-15 11:26:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 9006. [2022-02-15 11:26:43,784 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) [2022-02-15 11:26:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:26:43,800 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:26:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:43,801 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:26:43,801 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) [2022-02-15 11:26:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:26:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:43,811 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:43,811 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] [2022-02-15 11:26:43,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-15 11:26:43,812 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:43,812 INFO L85 PathProgramCache]: Analyzing trace with hash 502174872, now seen corresponding path program 71 times [2022-02-15 11:26:43,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:43,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861455638] [2022-02-15 11:26:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:43,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:43,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:43,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861455638] [2022-02-15 11:26:43,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861455638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:43,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:43,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:43,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696602821] [2022-02-15 11:26:43,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:43,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:43,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:43,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:43,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:43,937 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) [2022-02-15 11:26:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:44,424 INFO L93 Difference]: Finished difference Result 11414 states and 30764 transitions. [2022-02-15 11:26:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:44,424 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 [2022-02-15 11:26:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:44,441 INFO L225 Difference]: With dead ends: 11414 [2022-02-15 11:26:44,441 INFO L226 Difference]: Without dead ends: 10929 [2022-02-15 11:26:44,441 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 [2022-02-15 11:26:44,442 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 [2022-02-15 11:26:44,442 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] [2022-02-15 11:26:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-02-15 11:26:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 9010. [2022-02-15 11:26:44,566 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) [2022-02-15 11:26:44,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-02-15 11:26:44,584 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-02-15 11:26:44,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:44,584 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-02-15 11:26:44,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-02-15 11:26:44,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:44,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:44,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:44,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-15 11:26:44,595 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:44,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795526, now seen corresponding path program 72 times [2022-02-15 11:26:44,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:44,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86175815] [2022-02-15 11:26:44,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:44,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:44,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:44,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:44,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86175815] [2022-02-15 11:26:44,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86175815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:44,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:44,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:44,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960614030] [2022-02-15 11:26:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:44,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:44,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:44,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:44,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:44,716 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) [2022-02-15 11:26:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:45,224 INFO L93 Difference]: Finished difference Result 11348 states and 30587 transitions. [2022-02-15 11:26:45,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:45,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:45,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:45,242 INFO L225 Difference]: With dead ends: 11348 [2022-02-15 11:26:45,242 INFO L226 Difference]: Without dead ends: 10854 [2022-02-15 11:26:45,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:45,243 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 194 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 3408 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 [2022-02-15 11:26:45,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 3408 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-02-15 11:26:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8998. [2022-02-15 11:26:45,377 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) [2022-02-15 11:26:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-15 11:26:45,395 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-15 11:26:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:45,395 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-15 11:26:45,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:45,395 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-15 11:26:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:45,407 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:45,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:45,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-15 11:26:45,408 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:45,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:45,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1506729378, now seen corresponding path program 73 times [2022-02-15 11:26:45,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:45,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644804566] [2022-02-15 11:26:45,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:45,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:45,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:45,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644804566] [2022-02-15 11:26:45,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644804566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:45,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:45,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:45,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589102723] [2022-02-15 11:26:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:45,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:45,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:45,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:45,534 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) [2022-02-15 11:26:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:46,325 INFO L93 Difference]: Finished difference Result 11491 states and 30936 transitions. [2022-02-15 11:26:46,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:26:46,325 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:46,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:46,341 INFO L225 Difference]: With dead ends: 11491 [2022-02-15 11:26:46,342 INFO L226 Difference]: Without dead ends: 10920 [2022-02-15 11:26:46,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 11:26:46,342 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 322 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3644 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 [2022-02-15 11:26:46,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3644 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-02-15 11:26:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9002. [2022-02-15 11:26:46,457 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) [2022-02-15 11:26:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:26:46,474 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:26:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:46,474 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:26:46,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:26:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:46,485 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:46,485 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] [2022-02-15 11:26:46,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-15 11:26:46,486 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:46,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash -998675464, now seen corresponding path program 74 times [2022-02-15 11:26:46,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:46,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378061176] [2022-02-15 11:26:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:46,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:46,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:46,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378061176] [2022-02-15 11:26:46,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378061176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:46,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:46,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:46,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870988626] [2022-02-15 11:26:46,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:46,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:46,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:46,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:46,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:46,605 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) [2022-02-15 11:26:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:47,217 INFO L93 Difference]: Finished difference Result 11478 states and 30915 transitions. [2022-02-15 11:26:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:47,234 INFO L225 Difference]: With dead ends: 11478 [2022-02-15 11:26:47,234 INFO L226 Difference]: Without dead ends: 10950 [2022-02-15 11:26:47,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:26:47,235 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 [2022-02-15 11:26:47,235 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] [2022-02-15 11:26:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-02-15 11:26:47,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 9006. [2022-02-15 11:26:47,351 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) [2022-02-15 11:26:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-15 11:26:47,368 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-15 11:26:47,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:47,368 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-15 11:26:47,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-15 11:26:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:47,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:47,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:47,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-15 11:26:47,380 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash 788259490, now seen corresponding path program 75 times [2022-02-15 11:26:47,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:47,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387679820] [2022-02-15 11:26:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:47,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:47,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:47,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387679820] [2022-02-15 11:26:47,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387679820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:47,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:47,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:47,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304187567] [2022-02-15 11:26:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:47,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:47,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:47,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:47,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:47,522 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) [2022-02-15 11:26:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:48,016 INFO L93 Difference]: Finished difference Result 11314 states and 30485 transitions. [2022-02-15 11:26:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:48,033 INFO L225 Difference]: With dead ends: 11314 [2022-02-15 11:26:48,033 INFO L226 Difference]: Without dead ends: 10829 [2022-02-15 11:26:48,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:48,034 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 [2022-02-15 11:26:48,034 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] [2022-02-15 11:26:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-02-15 11:26:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 9010. [2022-02-15 11:26:48,153 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) [2022-02-15 11:26:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-15 11:26:48,170 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-15 11:26:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:48,171 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-15 11:26:48,171 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) [2022-02-15 11:26:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-15 11:26:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:48,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:48,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:48,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-15 11:26:48,182 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:48,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:48,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1469880144, now seen corresponding path program 76 times [2022-02-15 11:26:48,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:48,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120157262] [2022-02-15 11:26:48,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:48,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:48,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:48,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120157262] [2022-02-15 11:26:48,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120157262] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:48,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:48,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:48,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062908599] [2022-02-15 11:26:48,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:48,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:48,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:48,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:48,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:48,302 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) [2022-02-15 11:26:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:48,781 INFO L93 Difference]: Finished difference Result 11248 states and 30308 transitions. [2022-02-15 11:26:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:48,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:48,799 INFO L225 Difference]: With dead ends: 11248 [2022-02-15 11:26:48,799 INFO L226 Difference]: Without dead ends: 10746 [2022-02-15 11:26:48,799 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 [2022-02-15 11:26:48,799 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 [2022-02-15 11:26:48,799 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] [2022-02-15 11:26:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-02-15 11:26:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8990. [2022-02-15 11:26:48,927 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) [2022-02-15 11:26:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24281 transitions. [2022-02-15 11:26:48,946 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24281 transitions. Word has length 109 [2022-02-15 11:26:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:48,946 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24281 transitions. [2022-02-15 11:26:48,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24281 transitions. [2022-02-15 11:26:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:48,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:48,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:48,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-15 11:26:48,958 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash 457042722, now seen corresponding path program 77 times [2022-02-15 11:26:48,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:48,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165301222] [2022-02-15 11:26:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:48,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:49,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:49,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165301222] [2022-02-15 11:26:49,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165301222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:49,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:49,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:49,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460941887] [2022-02-15 11:26:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:49,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:49,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:49,147 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) [2022-02-15 11:26:49,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:49,596 INFO L93 Difference]: Finished difference Result 11318 states and 30508 transitions. [2022-02-15 11:26:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:26:49,596 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 [2022-02-15 11:26:49,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:49,613 INFO L225 Difference]: With dead ends: 11318 [2022-02-15 11:26:49,613 INFO L226 Difference]: Without dead ends: 10833 [2022-02-15 11:26:49,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:26:49,614 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 213 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:49,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2916 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:49,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-02-15 11:26:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 9010. [2022-02-15 11:26:49,738 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) [2022-02-15 11:26:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-15 11:26:49,756 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-15 11:26:49,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:49,756 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-15 11:26:49,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:49,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-15 11:26:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:49,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:49,768 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] [2022-02-15 11:26:49,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-15 11:26:49,768 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663376, now seen corresponding path program 78 times [2022-02-15 11:26:49,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:49,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482000323] [2022-02-15 11:26:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:49,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:49,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:49,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482000323] [2022-02-15 11:26:49,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482000323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:49,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:49,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:49,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174372328] [2022-02-15 11:26:49,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:49,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:49,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:49,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:49,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:49,888 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) [2022-02-15 11:26:50,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:50,383 INFO L93 Difference]: Finished difference Result 11284 states and 30419 transitions. [2022-02-15 11:26:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:50,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:50,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:50,401 INFO L225 Difference]: With dead ends: 11284 [2022-02-15 11:26:50,401 INFO L226 Difference]: Without dead ends: 10798 [2022-02-15 11:26:50,401 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 [2022-02-15 11:26:50,402 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 198 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3260 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 [2022-02-15 11:26:50,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3260 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-02-15 11:26:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 9006. [2022-02-15 11:26:50,523 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) [2022-02-15 11:26:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-15 11:26:50,541 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-15 11:26:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:50,541 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-15 11:26:50,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-15 11:26:50,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:50,553 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:50,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:50,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-15 11:26:50,553 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1839350932, now seen corresponding path program 79 times [2022-02-15 11:26:50,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:50,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382626726] [2022-02-15 11:26:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:50,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:50,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:50,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382626726] [2022-02-15 11:26:50,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382626726] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:50,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:50,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:50,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133485963] [2022-02-15 11:26:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:50,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:50,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:50,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:50,697 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) [2022-02-15 11:26:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:51,393 INFO L93 Difference]: Finished difference Result 11320 states and 30514 transitions. [2022-02-15 11:26:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:26:51,394 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 [2022-02-15 11:26:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:51,413 INFO L225 Difference]: With dead ends: 11320 [2022-02-15 11:26:51,413 INFO L226 Difference]: Without dead ends: 10794 [2022-02-15 11:26:51,414 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 [2022-02-15 11:26:51,414 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 251 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:51,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2817 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:51,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-02-15 11:26:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 9002. [2022-02-15 11:26:51,549 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) [2022-02-15 11:26:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-15 11:26:51,569 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-15 11:26:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:51,569 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-15 11:26:51,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:51,569 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-15 11:26:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:51,581 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:51,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:51,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-15 11:26:51,582 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -304725532, now seen corresponding path program 80 times [2022-02-15 11:26:51,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:51,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498870975] [2022-02-15 11:26:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:51,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:51,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:51,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498870975] [2022-02-15 11:26:51,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498870975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:51,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:51,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:51,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572076703] [2022-02-15 11:26:51,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:51,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:51,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:51,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:51,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:51,707 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) [2022-02-15 11:26:52,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:52,513 INFO L93 Difference]: Finished difference Result 11548 states and 31113 transitions. [2022-02-15 11:26:52,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:26:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:52,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:52,532 INFO L225 Difference]: With dead ends: 11548 [2022-02-15 11:26:52,532 INFO L226 Difference]: Without dead ends: 10982 [2022-02-15 11:26:52,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:26:52,533 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 328 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:52,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 3080 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:52,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2022-02-15 11:26:52,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 8998. [2022-02-15 11:26:52,667 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) [2022-02-15 11:26:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-15 11:26:52,686 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-15 11:26:52,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:52,687 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-15 11:26:52,687 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) [2022-02-15 11:26:52,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-15 11:26:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:52,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:52,699 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] [2022-02-15 11:26:52,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-15 11:26:52,700 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1487686952, now seen corresponding path program 81 times [2022-02-15 11:26:52,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:52,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350507659] [2022-02-15 11:26:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:52,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:52,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:52,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350507659] [2022-02-15 11:26:52,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350507659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:52,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:52,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:52,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360819540] [2022-02-15 11:26:52,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:52,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:52,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:52,832 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) [2022-02-15 11:26:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:53,332 INFO L93 Difference]: Finished difference Result 11294 states and 30438 transitions. [2022-02-15 11:26:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:53,332 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 [2022-02-15 11:26:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:53,349 INFO L225 Difference]: With dead ends: 11294 [2022-02-15 11:26:53,349 INFO L226 Difference]: Without dead ends: 10809 [2022-02-15 11:26:53,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:26:53,350 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 205 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3096 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 [2022-02-15 11:26:53,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3096 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:53,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-02-15 11:26:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9010. [2022-02-15 11:26:53,475 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) [2022-02-15 11:26:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-15 11:26:53,492 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-15 11:26:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:53,492 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-15 11:26:53,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-15 11:26:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:53,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:53,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:53,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-15 11:26:53,504 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2125659690, now seen corresponding path program 82 times [2022-02-15 11:26:53,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:53,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380753090] [2022-02-15 11:26:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:53,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:53,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:53,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380753090] [2022-02-15 11:26:53,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380753090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:53,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:53,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:53,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866331552] [2022-02-15 11:26:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:53,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:53,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:53,632 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) [2022-02-15 11:26:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:54,138 INFO L93 Difference]: Finished difference Result 11252 states and 30327 transitions. [2022-02-15 11:26:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:54,139 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 [2022-02-15 11:26:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:54,156 INFO L225 Difference]: With dead ends: 11252 [2022-02-15 11:26:54,156 INFO L226 Difference]: Without dead ends: 10766 [2022-02-15 11:26:54,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:26:54,157 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 203 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:54,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2930 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-02-15 11:26:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9006. [2022-02-15 11:26:54,286 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) [2022-02-15 11:26:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:26:54,305 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:26:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:54,305 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:26:54,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:26:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:54,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:54,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:54,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-15 11:26:54,317 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:54,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1424972134, now seen corresponding path program 83 times [2022-02-15 11:26:54,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:54,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733054233] [2022-02-15 11:26:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:54,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:54,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:54,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733054233] [2022-02-15 11:26:54,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733054233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:54,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:54,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:54,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285508979] [2022-02-15 11:26:54,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:54,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:54,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:54,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:54,437 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) [2022-02-15 11:26:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:55,040 INFO L93 Difference]: Finished difference Result 11420 states and 30769 transitions. [2022-02-15 11:26:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:26:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:55,059 INFO L225 Difference]: With dead ends: 11420 [2022-02-15 11:26:55,060 INFO L226 Difference]: Without dead ends: 10894 [2022-02-15 11:26:55,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:26:55,060 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 267 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3327 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 [2022-02-15 11:26:55,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3327 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:55,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-02-15 11:26:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9002. [2022-02-15 11:26:55,196 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) [2022-02-15 11:26:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:26:55,215 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:26:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:55,215 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:26:55,215 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) [2022-02-15 11:26:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:26:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:55,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:55,227 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] [2022-02-15 11:26:55,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-15 11:26:55,227 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash -347284106, now seen corresponding path program 84 times [2022-02-15 11:26:55,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:55,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791001277] [2022-02-15 11:26:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:55,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:55,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:55,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791001277] [2022-02-15 11:26:55,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791001277] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:55,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:55,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:55,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111454518] [2022-02-15 11:26:55,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:55,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:55,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:55,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:55,352 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) [2022-02-15 11:26:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:55,925 INFO L93 Difference]: Finished difference Result 11338 states and 30530 transitions. [2022-02-15 11:26:55,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:26:55,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:55,943 INFO L225 Difference]: With dead ends: 11338 [2022-02-15 11:26:55,943 INFO L226 Difference]: Without dead ends: 10810 [2022-02-15 11:26:55,944 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 [2022-02-15 11:26:55,944 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 265 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 3179 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 [2022-02-15 11:26:55,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 3179 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-02-15 11:26:56,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 9006. [2022-02-15 11:26:56,082 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) [2022-02-15 11:26:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-15 11:26:56,101 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-15 11:26:56,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:56,101 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-15 11:26:56,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-15 11:26:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:56,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:56,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:56,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-15 11:26:56,114 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:56,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1439650848, now seen corresponding path program 85 times [2022-02-15 11:26:56,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:56,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102709277] [2022-02-15 11:26:56,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:56,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:56,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:56,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102709277] [2022-02-15 11:26:56,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102709277] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:56,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:56,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:56,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769991871] [2022-02-15 11:26:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:56,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:56,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:56,246 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) [2022-02-15 11:26:56,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:56,752 INFO L93 Difference]: Finished difference Result 11238 states and 30276 transitions. [2022-02-15 11:26:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:56,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:56,770 INFO L225 Difference]: With dead ends: 11238 [2022-02-15 11:26:56,770 INFO L226 Difference]: Without dead ends: 10753 [2022-02-15 11:26:56,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:56,771 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 214 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2937 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 [2022-02-15 11:26:56,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2937 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:56,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-02-15 11:26:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 9010. [2022-02-15 11:26:56,898 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) [2022-02-15 11:26:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-15 11:26:56,916 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-15 11:26:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:56,916 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-15 11:26:56,916 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) [2022-02-15 11:26:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-15 11:26:56,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:56,928 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:56,928 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] [2022-02-15 11:26:56,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-15 11:26:56,929 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2121271502, now seen corresponding path program 86 times [2022-02-15 11:26:56,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:56,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604272198] [2022-02-15 11:26:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:56,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:57,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:57,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604272198] [2022-02-15 11:26:57,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604272198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:57,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:57,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:57,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876005407] [2022-02-15 11:26:57,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:57,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:57,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:57,059 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) [2022-02-15 11:26:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:57,562 INFO L93 Difference]: Finished difference Result 11188 states and 30143 transitions. [2022-02-15 11:26:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:26:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:26:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:57,581 INFO L225 Difference]: With dead ends: 11188 [2022-02-15 11:26:57,581 INFO L226 Difference]: Without dead ends: 10690 [2022-02-15 11:26:57,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:26:57,582 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:57,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3104 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-02-15 11:26:57,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 8994. [2022-02-15 11:26:57,720 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) [2022-02-15 11:26:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-02-15 11:26:57,740 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-02-15 11:26:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:57,740 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-02-15 11:26:57,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:26:57,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-02-15 11:26:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:57,752 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:57,752 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] [2022-02-15 11:26:57,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-15 11:26:57,752 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1935686880, now seen corresponding path program 87 times [2022-02-15 11:26:57,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:57,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027011377] [2022-02-15 11:26:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:57,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:57,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:57,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027011377] [2022-02-15 11:26:57,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027011377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:57,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:57,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:57,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911713637] [2022-02-15 11:26:57,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:57,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:57,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:57,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:57,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:57,875 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) [2022-02-15 11:26:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:58,359 INFO L93 Difference]: Finished difference Result 11130 states and 29987 transitions. [2022-02-15 11:26:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:26:58,359 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 [2022-02-15 11:26:58,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:58,376 INFO L225 Difference]: With dead ends: 11130 [2022-02-15 11:26:58,376 INFO L226 Difference]: Without dead ends: 10645 [2022-02-15 11:26:58,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-02-15 11:26:58,377 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 198 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:26:58,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3440 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:26:58,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-02-15 11:26:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 9010. [2022-02-15 11:26:58,504 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) [2022-02-15 11:26:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-15 11:26:58,524 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-15 11:26:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:58,524 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-15 11:26:58,524 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) [2022-02-15 11:26:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-15 11:26:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:58,536 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:58,536 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] [2022-02-15 11:26:58,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-15 11:26:58,537 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:58,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:58,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1677659762, now seen corresponding path program 88 times [2022-02-15 11:26:58,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:58,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886496612] [2022-02-15 11:26:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:58,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:58,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:58,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886496612] [2022-02-15 11:26:58,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886496612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:58,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:58,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:58,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488026468] [2022-02-15 11:26:58,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:58,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:58,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:58,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:58,662 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) [2022-02-15 11:26:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:26:59,171 INFO L93 Difference]: Finished difference Result 11100 states and 29909 transitions. [2022-02-15 11:26:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:26:59,172 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 [2022-02-15 11:26:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:26:59,190 INFO L225 Difference]: With dead ends: 11100 [2022-02-15 11:26:59,190 INFO L226 Difference]: Without dead ends: 10614 [2022-02-15 11:26:59,190 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 [2022-02-15 11:26:59,191 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 2949 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 [2022-02-15 11:26:59,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 2949 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:26:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-02-15 11:26:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 9006. [2022-02-15 11:26:59,354 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) [2022-02-15 11:26:59,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:26:59,372 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:26:59,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:26:59,372 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:26:59,373 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) [2022-02-15 11:26:59,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:26:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:26:59,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:26:59,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:26:59,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-15 11:26:59,385 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:26:59,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:26:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash -976972206, now seen corresponding path program 89 times [2022-02-15 11:26:59,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:26:59,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785426745] [2022-02-15 11:26:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:26:59,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:26:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:26:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:26:59,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:26:59,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785426745] [2022-02-15 11:26:59,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785426745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:26:59,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:26:59,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:26:59,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746486292] [2022-02-15 11:26:59,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:26:59,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:26:59,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:26:59,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:26:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:26:59,515 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) [2022-02-15 11:27:00,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:00,145 INFO L93 Difference]: Finished difference Result 11136 states and 30004 transitions. [2022-02-15 11:27:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:00,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:00,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:00,161 INFO L225 Difference]: With dead ends: 11136 [2022-02-15 11:27:00,162 INFO L226 Difference]: Without dead ends: 10610 [2022-02-15 11:27:00,162 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 [2022-02-15 11:27:00,162 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 246 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:00,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2989 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-02-15 11:27:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 9002. [2022-02-15 11:27:00,286 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) [2022-02-15 11:27:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:27:00,304 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:27:00,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:00,304 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:27:00,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:00,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:27:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:00,316 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:00,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:00,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-15 11:27:00,316 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:00,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1173918626, now seen corresponding path program 90 times [2022-02-15 11:27:00,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:00,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266762467] [2022-02-15 11:27:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:00,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:00,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:00,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266762467] [2022-02-15 11:27:00,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266762467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:00,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:00,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:00,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526534113] [2022-02-15 11:27:00,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:00,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:00,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:00,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:00,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:00,456 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) [2022-02-15 11:27:01,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:01,316 INFO L93 Difference]: Finished difference Result 11172 states and 30099 transitions. [2022-02-15 11:27:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:27:01,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:01,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:01,335 INFO L225 Difference]: With dead ends: 11172 [2022-02-15 11:27:01,335 INFO L226 Difference]: Without dead ends: 10606 [2022-02-15 11:27:01,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=672, Invalid=2190, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:27:01,336 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 293 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3165 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 [2022-02-15 11:27:01,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3165 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2022-02-15 11:27:01,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 8998. [2022-02-15 11:27:01,471 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) [2022-02-15 11:27:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-15 11:27:01,490 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-15 11:27:01,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:01,490 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-15 11:27:01,490 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) [2022-02-15 11:27:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-15 11:27:01,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:01,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:01,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:01,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-15 11:27:01,502 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:01,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109974, now seen corresponding path program 91 times [2022-02-15 11:27:01,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:01,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930746465] [2022-02-15 11:27:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:01,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:01,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:01,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930746465] [2022-02-15 11:27:01,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930746465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:01,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:01,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:01,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817382450] [2022-02-15 11:27:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:01,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:01,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:01,651 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) [2022-02-15 11:27:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:02,508 INFO L93 Difference]: Finished difference Result 11284 states and 30371 transitions. [2022-02-15 11:27:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:27:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:02,526 INFO L225 Difference]: With dead ends: 11284 [2022-02-15 11:27:02,526 INFO L226 Difference]: Without dead ends: 10670 [2022-02-15 11:27:02,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=793, Invalid=2399, Unknown=0, NotChecked=0, Total=3192 [2022-02-15 11:27:02,527 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 374 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:02,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 3424 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-02-15 11:27:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8986. [2022-02-15 11:27:02,657 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) [2022-02-15 11:27:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8986 states to 8986 states and 24270 transitions. [2022-02-15 11:27:02,675 INFO L78 Accepts]: Start accepts. Automaton has 8986 states and 24270 transitions. Word has length 109 [2022-02-15 11:27:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:02,676 INFO L470 AbstractCegarLoop]: Abstraction has 8986 states and 24270 transitions. [2022-02-15 11:27:02,676 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) [2022-02-15 11:27:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8986 states and 24270 transitions. [2022-02-15 11:27:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:02,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:02,688 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:02,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-15 11:27:02,688 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash -831958788, now seen corresponding path program 92 times [2022-02-15 11:27:02,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:02,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583342515] [2022-02-15 11:27:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:02,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:02,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:02,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583342515] [2022-02-15 11:27:02,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583342515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:02,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:02,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:02,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043086470] [2022-02-15 11:27:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:02,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:02,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:02,813 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) [2022-02-15 11:27:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:03,299 INFO L93 Difference]: Finished difference Result 11086 states and 29870 transitions. [2022-02-15 11:27:03,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:03,299 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:03,316 INFO L225 Difference]: With dead ends: 11086 [2022-02-15 11:27:03,316 INFO L226 Difference]: Without dead ends: 10601 [2022-02-15 11:27:03,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:27:03,316 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3443 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 [2022-02-15 11:27:03,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3443 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-02-15 11:27:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 9010. [2022-02-15 11:27:03,440 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) [2022-02-15 11:27:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-15 11:27:03,458 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-15 11:27:03,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:03,458 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-15 11:27:03,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-15 11:27:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:03,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:03,471 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] [2022-02-15 11:27:03,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-15 11:27:03,471 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:03,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:03,471 INFO L85 PathProgramCache]: Analyzing trace with hash -150338134, now seen corresponding path program 93 times [2022-02-15 11:27:03,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:03,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951280193] [2022-02-15 11:27:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:03,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:03,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:03,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951280193] [2022-02-15 11:27:03,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951280193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:03,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:03,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:03,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515613033] [2022-02-15 11:27:03,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:03,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:03,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:03,593 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) [2022-02-15 11:27:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:04,108 INFO L93 Difference]: Finished difference Result 11052 states and 29781 transitions. [2022-02-15 11:27:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:04,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:04,125 INFO L225 Difference]: With dead ends: 11052 [2022-02-15 11:27:04,125 INFO L226 Difference]: Without dead ends: 10566 [2022-02-15 11:27:04,125 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 [2022-02-15 11:27:04,126 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 199 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3430 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 [2022-02-15 11:27:04,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 3430 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:04,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-02-15 11:27:04,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 9006. [2022-02-15 11:27:04,252 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) [2022-02-15 11:27:04,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-15 11:27:04,271 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-15 11:27:04,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:04,271 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-15 11:27:04,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:04,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-15 11:27:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:04,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:04,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:04,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-15 11:27:04,284 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash 550349422, now seen corresponding path program 94 times [2022-02-15 11:27:04,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:04,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50056421] [2022-02-15 11:27:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:04,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:04,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:04,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50056421] [2022-02-15 11:27:04,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50056421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:04,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:04,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:04,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550289985] [2022-02-15 11:27:04,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:04,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:04,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:04,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:04,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:04,408 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) [2022-02-15 11:27:05,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:05,074 INFO L93 Difference]: Finished difference Result 11088 states and 29876 transitions. [2022-02-15 11:27:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:05,074 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 [2022-02-15 11:27:05,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:05,091 INFO L225 Difference]: With dead ends: 11088 [2022-02-15 11:27:05,092 INFO L226 Difference]: Without dead ends: 10562 [2022-02-15 11:27:05,092 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 [2022-02-15 11:27:05,092 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 255 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:05,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2978 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-02-15 11:27:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 9002. [2022-02-15 11:27:05,217 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) [2022-02-15 11:27:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-15 11:27:05,235 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-15 11:27:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:05,235 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-15 11:27:05,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-15 11:27:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:05,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:05,247 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] [2022-02-15 11:27:05,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-15 11:27:05,247 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:05,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1593727042, now seen corresponding path program 95 times [2022-02-15 11:27:05,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:05,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203166668] [2022-02-15 11:27:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:05,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:05,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:05,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203166668] [2022-02-15 11:27:05,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203166668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:05,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:05,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:05,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982229160] [2022-02-15 11:27:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:05,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:05,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:05,380 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) [2022-02-15 11:27:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:06,162 INFO L93 Difference]: Finished difference Result 11176 states and 30090 transitions. [2022-02-15 11:27:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:27:06,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:06,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:06,179 INFO L225 Difference]: With dead ends: 11176 [2022-02-15 11:27:06,179 INFO L226 Difference]: Without dead ends: 10610 [2022-02-15 11:27:06,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 11:27:06,180 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 321 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 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 [2022-02-15 11:27:06,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 3542 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-02-15 11:27:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 8998. [2022-02-15 11:27:06,313 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) [2022-02-15 11:27:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-15 11:27:06,334 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-15 11:27:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:06,334 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-15 11:27:06,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-15 11:27:06,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:06,346 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:06,346 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] [2022-02-15 11:27:06,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-15 11:27:06,346 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash 198685442, now seen corresponding path program 96 times [2022-02-15 11:27:06,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:06,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995032651] [2022-02-15 11:27:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:06,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:06,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:06,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995032651] [2022-02-15 11:27:06,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995032651] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:06,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:06,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:06,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086613814] [2022-02-15 11:27:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:06,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:06,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:06,468 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) [2022-02-15 11:27:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:06,971 INFO L93 Difference]: Finished difference Result 11150 states and 30042 transitions. [2022-02-15 11:27:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:06,972 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 [2022-02-15 11:27:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:06,989 INFO L225 Difference]: With dead ends: 11150 [2022-02-15 11:27:06,990 INFO L226 Difference]: Without dead ends: 10665 [2022-02-15 11:27:06,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:06,990 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 236 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:06,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3426 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:07,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2022-02-15 11:27:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 9010. [2022-02-15 11:27:07,120 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) [2022-02-15 11:27:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-15 11:27:07,138 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-15 11:27:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:07,138 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-15 11:27:07,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:07,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-15 11:27:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:07,150 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:07,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:07,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-15 11:27:07,150 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash 880306096, now seen corresponding path program 97 times [2022-02-15 11:27:07,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:07,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368595796] [2022-02-15 11:27:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:07,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:07,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:07,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368595796] [2022-02-15 11:27:07,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368595796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:07,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:07,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:07,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364061314] [2022-02-15 11:27:07,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:07,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:07,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:07,286 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) [2022-02-15 11:27:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:07,804 INFO L93 Difference]: Finished difference Result 11108 states and 29931 transitions. [2022-02-15 11:27:07,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:07,805 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 [2022-02-15 11:27:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:07,822 INFO L225 Difference]: With dead ends: 11108 [2022-02-15 11:27:07,822 INFO L226 Difference]: Without dead ends: 10622 [2022-02-15 11:27:07,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:07,822 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 221 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3237 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 [2022-02-15 11:27:07,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3237 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-02-15 11:27:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9006. [2022-02-15 11:27:07,938 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) [2022-02-15 11:27:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:27:07,954 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:27:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:07,954 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:27:07,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:27:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:07,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:07,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:07,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-15 11:27:07,965 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:07,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1580993652, now seen corresponding path program 98 times [2022-02-15 11:27:07,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:07,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353919710] [2022-02-15 11:27:07,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:07,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:08,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:08,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:08,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353919710] [2022-02-15 11:27:08,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353919710] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:08,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:08,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:08,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679729909] [2022-02-15 11:27:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:08,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:08,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:08,119 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) [2022-02-15 11:27:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:08,736 INFO L93 Difference]: Finished difference Result 11236 states and 30263 transitions. [2022-02-15 11:27:08,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:08,736 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 [2022-02-15 11:27:08,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:08,754 INFO L225 Difference]: With dead ends: 11236 [2022-02-15 11:27:08,754 INFO L226 Difference]: Without dead ends: 10710 [2022-02-15 11:27:08,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:27:08,755 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 294 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3281 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 [2022-02-15 11:27:08,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3281 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-02-15 11:27:08,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9002. [2022-02-15 11:27:08,891 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) [2022-02-15 11:27:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:27:08,910 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:27:08,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:08,910 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:27:08,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:08,910 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:27:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:08,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:08,922 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] [2022-02-15 11:27:08,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-15 11:27:08,922 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1636285616, now seen corresponding path program 99 times [2022-02-15 11:27:08,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:08,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930331814] [2022-02-15 11:27:08,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:08,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:09,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:09,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930331814] [2022-02-15 11:27:09,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930331814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:09,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:09,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:09,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543791791] [2022-02-15 11:27:09,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:09,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:09,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:09,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:09,063 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) [2022-02-15 11:27:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:09,707 INFO L93 Difference]: Finished difference Result 11238 states and 30255 transitions. [2022-02-15 11:27:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:27:09,707 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 [2022-02-15 11:27:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:09,773 INFO L225 Difference]: With dead ends: 11238 [2022-02-15 11:27:09,773 INFO L226 Difference]: Without dead ends: 10710 [2022-02-15 11:27:09,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 11:27:09,774 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 284 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 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 [2022-02-15 11:27:09,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3531 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-02-15 11:27:09,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9006. [2022-02-15 11:27:09,878 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) [2022-02-15 11:27:09,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-15 11:27:09,896 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-15 11:27:09,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:09,896 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-15 11:27:09,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-15 11:27:09,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:09,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:09,908 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] [2022-02-15 11:27:09,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-15 11:27:09,908 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:09,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:09,909 INFO L85 PathProgramCache]: Analyzing trace with hash 150649338, now seen corresponding path program 100 times [2022-02-15 11:27:09,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:09,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755356575] [2022-02-15 11:27:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:09,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:10,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:10,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755356575] [2022-02-15 11:27:10,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755356575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:10,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:10,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:10,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103195814] [2022-02-15 11:27:10,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:10,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:10,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:10,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:10,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:10,034 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) [2022-02-15 11:27:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:10,528 INFO L93 Difference]: Finished difference Result 11090 states and 29869 transitions. [2022-02-15 11:27:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:10,528 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:10,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:10,544 INFO L225 Difference]: With dead ends: 11090 [2022-02-15 11:27:10,544 INFO L226 Difference]: Without dead ends: 10605 [2022-02-15 11:27:10,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:10,545 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3259 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 [2022-02-15 11:27:10,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3259 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10605 states. [2022-02-15 11:27:10,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10605 to 9010. [2022-02-15 11:27:10,672 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) [2022-02-15 11:27:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-15 11:27:10,690 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-15 11:27:10,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:10,690 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-15 11:27:10,690 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) [2022-02-15 11:27:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-15 11:27:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:10,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:10,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:10,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-15 11:27:10,702 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash 832269992, now seen corresponding path program 101 times [2022-02-15 11:27:10,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:10,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243202604] [2022-02-15 11:27:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:10,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:10,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:10,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243202604] [2022-02-15 11:27:10,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243202604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:10,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:10,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:10,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896115720] [2022-02-15 11:27:10,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:10,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:10,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:10,833 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) [2022-02-15 11:27:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:11,307 INFO L93 Difference]: Finished difference Result 11008 states and 29648 transitions. [2022-02-15 11:27:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:11,307 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:11,323 INFO L225 Difference]: With dead ends: 11008 [2022-02-15 11:27:11,324 INFO L226 Difference]: Without dead ends: 10510 [2022-02-15 11:27:11,324 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 [2022-02-15 11:27:11,324 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 [2022-02-15 11:27:11,324 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] [2022-02-15 11:27:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-02-15 11:27:11,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 8994. [2022-02-15 11:27:11,444 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) [2022-02-15 11:27:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-02-15 11:27:11,462 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-02-15 11:27:11,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:11,462 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-02-15 11:27:11,462 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) [2022-02-15 11:27:11,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-02-15 11:27:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:11,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:11,474 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] [2022-02-15 11:27:11,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-15 11:27:11,474 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:11,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1280629754, now seen corresponding path program 102 times [2022-02-15 11:27:11,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:11,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216258314] [2022-02-15 11:27:11,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:11,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:11,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:11,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216258314] [2022-02-15 11:27:11,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216258314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:11,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:11,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:11,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828280023] [2022-02-15 11:27:11,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:11,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:11,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:11,633 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) [2022-02-15 11:27:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:12,149 INFO L93 Difference]: Finished difference Result 11186 states and 30141 transitions. [2022-02-15 11:27:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:12,149 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 [2022-02-15 11:27:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:12,166 INFO L225 Difference]: With dead ends: 11186 [2022-02-15 11:27:12,167 INFO L226 Difference]: Without dead ends: 10701 [2022-02-15 11:27:12,167 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 [2022-02-15 11:27:12,167 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 237 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:12,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2980 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-15 11:27:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-02-15 11:27:12,298 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) [2022-02-15 11:27:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-15 11:27:12,316 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-15 11:27:12,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:12,316 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-15 11:27:12,316 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) [2022-02-15 11:27:12,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-15 11:27:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:12,328 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:12,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:12,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-15 11:27:12,329 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:12,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:12,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1962250408, now seen corresponding path program 103 times [2022-02-15 11:27:12,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:12,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612745620] [2022-02-15 11:27:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:12,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:12,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:12,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612745620] [2022-02-15 11:27:12,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612745620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:12,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:12,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:12,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274259162] [2022-02-15 11:27:12,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:12,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:12,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:12,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:12,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:12,446 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) [2022-02-15 11:27:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:12,955 INFO L93 Difference]: Finished difference Result 11144 states and 30030 transitions. [2022-02-15 11:27:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:12,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:12,972 INFO L225 Difference]: With dead ends: 11144 [2022-02-15 11:27:12,972 INFO L226 Difference]: Without dead ends: 10658 [2022-02-15 11:27:12,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:12,973 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 221 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3221 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 [2022-02-15 11:27:12,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3221 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:12,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-02-15 11:27:13,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 9006. [2022-02-15 11:27:13,109 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) [2022-02-15 11:27:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:27:13,126 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:27:13,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:13,126 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:27:13,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:13,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:27:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:13,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:13,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:13,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-15 11:27:13,138 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:13,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:13,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1632029332, now seen corresponding path program 104 times [2022-02-15 11:27:13,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:13,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312662419] [2022-02-15 11:27:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:13,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:13,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:13,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312662419] [2022-02-15 11:27:13,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312662419] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:13,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:13,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:13,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377186220] [2022-02-15 11:27:13,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:13,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:13,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:13,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:13,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:13,266 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) [2022-02-15 11:27:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:13,898 INFO L93 Difference]: Finished difference Result 11252 states and 30307 transitions. [2022-02-15 11:27:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:27:13,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:13,915 INFO L225 Difference]: With dead ends: 11252 [2022-02-15 11:27:13,916 INFO L226 Difference]: Without dead ends: 10726 [2022-02-15 11:27:13,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:27:13,916 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:13,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3265 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:13,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-02-15 11:27:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9002. [2022-02-15 11:27:14,050 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) [2022-02-15 11:27:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:27:14,068 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:27:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:14,068 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:27:14,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:27:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:14,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:14,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:14,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-15 11:27:14,083 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash -554341304, now seen corresponding path program 105 times [2022-02-15 11:27:14,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:14,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451025819] [2022-02-15 11:27:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:14,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:14,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:14,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451025819] [2022-02-15 11:27:14,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451025819] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:14,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:14,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:14,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813985887] [2022-02-15 11:27:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:14,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:14,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:14,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:14,210 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) [2022-02-15 11:27:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:14,812 INFO L93 Difference]: Finished difference Result 11350 states and 30563 transitions. [2022-02-15 11:27:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:14,812 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 [2022-02-15 11:27:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:14,830 INFO L225 Difference]: With dead ends: 11350 [2022-02-15 11:27:14,830 INFO L226 Difference]: Without dead ends: 10822 [2022-02-15 11:27:14,830 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 [2022-02-15 11:27:14,830 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 294 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:14,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3539 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-02-15 11:27:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 9006. [2022-02-15 11:27:14,961 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) [2022-02-15 11:27:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-15 11:27:14,980 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-15 11:27:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:14,980 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-15 11:27:14,980 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) [2022-02-15 11:27:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-15 11:27:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:14,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:14,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:14,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-15 11:27:14,993 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:14,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:14,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1232593650, now seen corresponding path program 106 times [2022-02-15 11:27:14,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:14,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518919598] [2022-02-15 11:27:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:14,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:15,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:15,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518919598] [2022-02-15 11:27:15,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518919598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:15,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:15,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:15,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490569119] [2022-02-15 11:27:15,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:15,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:15,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:15,137 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) [2022-02-15 11:27:15,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:15,642 INFO L93 Difference]: Finished difference Result 11186 states and 30133 transitions. [2022-02-15 11:27:15,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:15,642 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:15,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:15,659 INFO L225 Difference]: With dead ends: 11186 [2022-02-15 11:27:15,660 INFO L226 Difference]: Without dead ends: 10701 [2022-02-15 11:27:15,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:15,660 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 229 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 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 [2022-02-15 11:27:15,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3260 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-15 11:27:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-02-15 11:27:15,790 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) [2022-02-15 11:27:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-15 11:27:15,809 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-15 11:27:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:15,809 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-15 11:27:15,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:15,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-15 11:27:15,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:15,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:15,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:15,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-15 11:27:15,821 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:15,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1914214304, now seen corresponding path program 107 times [2022-02-15 11:27:15,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:15,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111485550] [2022-02-15 11:27:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:15,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:15,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:15,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111485550] [2022-02-15 11:27:15,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111485550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:15,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:15,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:15,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544276523] [2022-02-15 11:27:15,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:15,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:15,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:15,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:15,943 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) [2022-02-15 11:27:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:16,434 INFO L93 Difference]: Finished difference Result 11120 states and 29956 transitions. [2022-02-15 11:27:16,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:16,451 INFO L225 Difference]: With dead ends: 11120 [2022-02-15 11:27:16,451 INFO L226 Difference]: Without dead ends: 10626 [2022-02-15 11:27:16,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:16,452 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 212 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3379 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 [2022-02-15 11:27:16,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3379 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2022-02-15 11:27:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8998. [2022-02-15 11:27:16,570 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) [2022-02-15 11:27:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-15 11:27:16,587 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-15 11:27:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:16,588 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-15 11:27:16,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:16,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-15 11:27:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:16,599 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:16,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:16,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-15 11:27:16,599 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819140, now seen corresponding path program 108 times [2022-02-15 11:27:16,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:16,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002595779] [2022-02-15 11:27:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:16,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:16,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:16,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002595779] [2022-02-15 11:27:16,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002595779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:16,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:16,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:16,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569048106] [2022-02-15 11:27:16,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:16,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:16,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:16,730 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) [2022-02-15 11:27:17,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:17,486 INFO L93 Difference]: Finished difference Result 11371 states and 30602 transitions. [2022-02-15 11:27:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:27:17,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:17,506 INFO L225 Difference]: With dead ends: 11371 [2022-02-15 11:27:17,506 INFO L226 Difference]: Without dead ends: 10800 [2022-02-15 11:27:17,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 11:27:17,507 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 353 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:17,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3144 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10800 states. [2022-02-15 11:27:17,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10800 to 9002. [2022-02-15 11:27:17,641 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) [2022-02-15 11:27:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-02-15 11:27:17,660 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-02-15 11:27:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:17,660 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-02-15 11:27:17,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-02-15 11:27:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:17,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:17,672 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] [2022-02-15 11:27:17,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-15 11:27:17,672 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash -268256686, now seen corresponding path program 109 times [2022-02-15 11:27:17,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:17,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002787810] [2022-02-15 11:27:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:17,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:17,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:17,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002787810] [2022-02-15 11:27:17,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002787810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:17,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:17,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:17,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804006041] [2022-02-15 11:27:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:17,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:17,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:17,798 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) [2022-02-15 11:27:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:18,456 INFO L93 Difference]: Finished difference Result 11254 states and 30295 transitions. [2022-02-15 11:27:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:18,456 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 [2022-02-15 11:27:18,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:18,473 INFO L225 Difference]: With dead ends: 11254 [2022-02-15 11:27:18,473 INFO L226 Difference]: Without dead ends: 10726 [2022-02-15 11:27:18,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:27:18,474 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 289 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 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 [2022-02-15 11:27:18,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3534 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:18,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-02-15 11:27:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9006. [2022-02-15 11:27:18,591 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) [2022-02-15 11:27:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-02-15 11:27:18,609 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-02-15 11:27:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:18,609 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-02-15 11:27:18,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:18,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-02-15 11:27:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:18,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:18,621 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] [2022-02-15 11:27:18,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-15 11:27:18,621 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:18,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1518678268, now seen corresponding path program 110 times [2022-02-15 11:27:18,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:18,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585850385] [2022-02-15 11:27:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:18,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:18,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:18,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585850385] [2022-02-15 11:27:18,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585850385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:18,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:18,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:18,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073777141] [2022-02-15 11:27:18,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:18,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:18,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:18,748 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) [2022-02-15 11:27:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:19,237 INFO L93 Difference]: Finished difference Result 11106 states and 29909 transitions. [2022-02-15 11:27:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:19,238 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 [2022-02-15 11:27:19,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:19,255 INFO L225 Difference]: With dead ends: 11106 [2022-02-15 11:27:19,255 INFO L226 Difference]: Without dead ends: 10621 [2022-02-15 11:27:19,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:19,255 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 [2022-02-15 11:27:19,255 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] [2022-02-15 11:27:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-02-15 11:27:19,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9010. [2022-02-15 11:27:19,434 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) [2022-02-15 11:27:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-02-15 11:27:19,451 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-02-15 11:27:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:19,451 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-02-15 11:27:19,451 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) [2022-02-15 11:27:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-02-15 11:27:19,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:19,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:19,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:19,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-15 11:27:19,464 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2094668374, now seen corresponding path program 111 times [2022-02-15 11:27:19,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:19,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951919356] [2022-02-15 11:27:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:19,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:19,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:19,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951919356] [2022-02-15 11:27:19,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951919356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:19,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:19,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:19,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650129813] [2022-02-15 11:27:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:19,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:19,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:19,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:19,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:19,581 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) [2022-02-15 11:27:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:20,028 INFO L93 Difference]: Finished difference Result 11008 states and 29644 transitions. [2022-02-15 11:27:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:20,028 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 [2022-02-15 11:27:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:20,045 INFO L225 Difference]: With dead ends: 11008 [2022-02-15 11:27:20,045 INFO L226 Difference]: Without dead ends: 10506 [2022-02-15 11:27:20,046 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 [2022-02-15 11:27:20,046 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3185 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 [2022-02-15 11:27:20,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3185 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-02-15 11:27:20,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 8990. [2022-02-15 11:27:20,173 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) [2022-02-15 11:27:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24277 transitions. [2022-02-15 11:27:20,192 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24277 transitions. Word has length 109 [2022-02-15 11:27:20,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:20,192 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24277 transitions. [2022-02-15 11:27:20,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24277 transitions. [2022-02-15 11:27:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:20,205 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:20,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:20,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-15 11:27:20,205 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 287389928, now seen corresponding path program 112 times [2022-02-15 11:27:20,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:20,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929141744] [2022-02-15 11:27:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:20,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:20,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:20,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929141744] [2022-02-15 11:27:20,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929141744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:20,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:20,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:20,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655399797] [2022-02-15 11:27:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:20,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:20,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:20,354 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) [2022-02-15 11:27:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:20,896 INFO L93 Difference]: Finished difference Result 11042 states and 29745 transitions. [2022-02-15 11:27:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:20,912 INFO L225 Difference]: With dead ends: 11042 [2022-02-15 11:27:20,913 INFO L226 Difference]: Without dead ends: 10557 [2022-02-15 11:27:20,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:20,913 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 245 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 3383 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 [2022-02-15 11:27:20,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 3383 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-02-15 11:27:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-02-15 11:27:21,037 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) [2022-02-15 11:27:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-15 11:27:21,057 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-15 11:27:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-15 11:27:21,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-15 11:27:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:21,072 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:21,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:21,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-15 11:27:21,072 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 969010582, now seen corresponding path program 113 times [2022-02-15 11:27:21,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:21,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204020668] [2022-02-15 11:27:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:21,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:21,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:21,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204020668] [2022-02-15 11:27:21,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204020668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:21,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:21,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:21,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273198535] [2022-02-15 11:27:21,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:21,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:21,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:21,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:21,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:21,195 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) [2022-02-15 11:27:21,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:21,697 INFO L93 Difference]: Finished difference Result 11000 states and 29634 transitions. [2022-02-15 11:27:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:21,698 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 [2022-02-15 11:27:21,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:21,714 INFO L225 Difference]: With dead ends: 11000 [2022-02-15 11:27:21,715 INFO L226 Difference]: Without dead ends: 10514 [2022-02-15 11:27:21,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:21,715 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:21,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3195 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2022-02-15 11:27:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 9006. [2022-02-15 11:27:21,838 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) [2022-02-15 11:27:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-15 11:27:21,857 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-15 11:27:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:21,857 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-15 11:27:21,857 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) [2022-02-15 11:27:21,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-15 11:27:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:21,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:21,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:21,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-15 11:27:21,870 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1669698138, now seen corresponding path program 114 times [2022-02-15 11:27:21,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:21,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508374958] [2022-02-15 11:27:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:21,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:21,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:21,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508374958] [2022-02-15 11:27:21,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508374958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:21,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:21,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:21,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350629128] [2022-02-15 11:27:21,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:21,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:21,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:21,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:21,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:21,990 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) [2022-02-15 11:27:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:22,547 INFO L93 Difference]: Finished difference Result 11068 states and 29801 transitions. [2022-02-15 11:27:22,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:27:22,547 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 [2022-02-15 11:27:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:22,563 INFO L225 Difference]: With dead ends: 11068 [2022-02-15 11:27:22,563 INFO L226 Difference]: Without dead ends: 10542 [2022-02-15 11:27:22,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:27:22,564 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 293 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3401 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 [2022-02-15 11:27:22,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3401 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:22,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2022-02-15 11:27:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9002. [2022-02-15 11:27:22,689 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) [2022-02-15 11:27:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-15 11:27:22,707 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-15 11:27:22,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:22,707 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-15 11:27:22,707 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) [2022-02-15 11:27:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-15 11:27:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:22,718 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:22,718 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:22,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-15 11:27:22,718 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1547581130, now seen corresponding path program 115 times [2022-02-15 11:27:22,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:22,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134654982] [2022-02-15 11:27:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:22,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:22,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:22,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134654982] [2022-02-15 11:27:22,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134654982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:22,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:22,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:22,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118538448] [2022-02-15 11:27:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:22,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:22,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:22,853 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) [2022-02-15 11:27:23,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:23,453 INFO L93 Difference]: Finished difference Result 11198 states and 30145 transitions. [2022-02-15 11:27:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:23,454 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 [2022-02-15 11:27:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:23,470 INFO L225 Difference]: With dead ends: 11198 [2022-02-15 11:27:23,470 INFO L226 Difference]: Without dead ends: 10670 [2022-02-15 11:27:23,470 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 [2022-02-15 11:27:23,470 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 343 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2766 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 [2022-02-15 11:27:23,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2766 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-02-15 11:27:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 9006. [2022-02-15 11:27:23,585 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) [2022-02-15 11:27:23,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-15 11:27:23,602 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-15 11:27:23,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:23,602 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-15 11:27:23,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-15 11:27:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:23,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:23,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:23,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-15 11:27:23,614 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 239353824, now seen corresponding path program 116 times [2022-02-15 11:27:23,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:23,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456194896] [2022-02-15 11:27:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:23,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:23,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:23,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456194896] [2022-02-15 11:27:23,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456194896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:23,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:23,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:23,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409277251] [2022-02-15 11:27:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:23,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:23,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:23,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:23,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:23,754 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) [2022-02-15 11:27:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:24,313 INFO L93 Difference]: Finished difference Result 11034 states and 29715 transitions. [2022-02-15 11:27:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:24,313 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 [2022-02-15 11:27:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:24,330 INFO L225 Difference]: With dead ends: 11034 [2022-02-15 11:27:24,330 INFO L226 Difference]: Without dead ends: 10549 [2022-02-15 11:27:24,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:24,331 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 268 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3199 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 [2022-02-15 11:27:24,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3199 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-02-15 11:27:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 9010. [2022-02-15 11:27:24,448 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) [2022-02-15 11:27:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-15 11:27:24,464 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-15 11:27:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:24,464 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-15 11:27:24,464 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) [2022-02-15 11:27:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-15 11:27:24,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:24,474 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:24,474 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] [2022-02-15 11:27:24,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-15 11:27:24,474 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:24,475 INFO L85 PathProgramCache]: Analyzing trace with hash 920974478, now seen corresponding path program 117 times [2022-02-15 11:27:24,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:24,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819411357] [2022-02-15 11:27:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:24,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:24,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:24,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819411357] [2022-02-15 11:27:24,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819411357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:24,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:24,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:24,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611880063] [2022-02-15 11:27:24,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:24,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:24,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:24,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:24,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:24,598 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) [2022-02-15 11:27:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:25,071 INFO L93 Difference]: Finished difference Result 10968 states and 29538 transitions. [2022-02-15 11:27:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:25,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:25,088 INFO L225 Difference]: With dead ends: 10968 [2022-02-15 11:27:25,088 INFO L226 Difference]: Without dead ends: 10474 [2022-02-15 11:27:25,089 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 [2022-02-15 11:27:25,089 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 [2022-02-15 11:27:25,089 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] [2022-02-15 11:27:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2022-02-15 11:27:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 8998. [2022-02-15 11:27:25,213 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) [2022-02-15 11:27:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-15 11:27:25,232 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-15 11:27:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:25,232 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-15 11:27:25,232 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) [2022-02-15 11:27:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-15 11:27:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:25,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:25,244 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:25,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-15 11:27:25,244 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1243908330, now seen corresponding path program 118 times [2022-02-15 11:27:25,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:25,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597712811] [2022-02-15 11:27:25,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:25,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:25,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:25,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597712811] [2022-02-15 11:27:25,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597712811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:25,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:25,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:25,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224627715] [2022-02-15 11:27:25,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:25,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:25,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:25,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:25,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:25,362 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) [2022-02-15 11:27:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:26,055 INFO L93 Difference]: Finished difference Result 11331 states and 30492 transitions. [2022-02-15 11:27:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:27:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:26,074 INFO L225 Difference]: With dead ends: 11331 [2022-02-15 11:27:26,074 INFO L226 Difference]: Without dead ends: 10760 [2022-02-15 11:27:26,074 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 [2022-02-15 11:27:26,074 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 [2022-02-15 11:27:26,075 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] [2022-02-15 11:27:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2022-02-15 11:27:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 9002. [2022-02-15 11:27:26,201 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) [2022-02-15 11:27:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-02-15 11:27:26,218 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-02-15 11:27:26,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:26,218 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-02-15 11:27:26,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-02-15 11:27:26,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:26,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:26,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:26,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-02-15 11:27:26,229 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:26,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:26,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1261496512, now seen corresponding path program 119 times [2022-02-15 11:27:26,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:26,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464834892] [2022-02-15 11:27:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:26,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:26,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:26,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464834892] [2022-02-15 11:27:26,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464834892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:26,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:26,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:26,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141397913] [2022-02-15 11:27:26,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:26,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:26,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:26,376 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) [2022-02-15 11:27:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:27,030 INFO L93 Difference]: Finished difference Result 11206 states and 30163 transitions. [2022-02-15 11:27:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:27,030 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 [2022-02-15 11:27:27,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:27,048 INFO L225 Difference]: With dead ends: 11206 [2022-02-15 11:27:27,048 INFO L226 Difference]: Without dead ends: 10678 [2022-02-15 11:27:27,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:27:27,048 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 344 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:27:27,048 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] [2022-02-15 11:27:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-02-15 11:27:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 9006. [2022-02-15 11:27:27,179 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) [2022-02-15 11:27:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-02-15 11:27:27,197 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-02-15 11:27:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:27,197 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-02-15 11:27:27,197 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) [2022-02-15 11:27:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-02-15 11:27:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:27,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:27,209 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] [2022-02-15 11:27:27,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-02-15 11:27:27,209 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:27,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash 525438442, now seen corresponding path program 120 times [2022-02-15 11:27:27,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:27,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138877946] [2022-02-15 11:27:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:27,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:27,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:27,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138877946] [2022-02-15 11:27:27,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138877946] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:27,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:27,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:27,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368133623] [2022-02-15 11:27:27,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:27,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:27,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:27,338 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) [2022-02-15 11:27:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:27,816 INFO L93 Difference]: Finished difference Result 11042 states and 29733 transitions. [2022-02-15 11:27:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:27,816 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 [2022-02-15 11:27:27,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:27,832 INFO L225 Difference]: With dead ends: 11042 [2022-02-15 11:27:27,832 INFO L226 Difference]: Without dead ends: 10557 [2022-02-15 11:27:27,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:27,833 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 270 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2857 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 [2022-02-15 11:27:27,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2857 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:27,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-02-15 11:27:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-02-15 11:27:27,962 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) [2022-02-15 11:27:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-02-15 11:27:27,982 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-02-15 11:27:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:27,983 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-02-15 11:27:27,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-02-15 11:27:27,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:27,996 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:27,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:27,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-15 11:27:27,996 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:27,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1207059096, now seen corresponding path program 121 times [2022-02-15 11:27:27,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:27,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214616741] [2022-02-15 11:27:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:27,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:28,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:28,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214616741] [2022-02-15 11:27:28,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214616741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:28,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:28,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:28,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44695222] [2022-02-15 11:27:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:28,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:28,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:28,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:28,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:28,117 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) [2022-02-15 11:27:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:28,590 INFO L93 Difference]: Finished difference Result 10968 states and 29534 transitions. [2022-02-15 11:27:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:28,608 INFO L225 Difference]: With dead ends: 10968 [2022-02-15 11:27:28,608 INFO L226 Difference]: Without dead ends: 10470 [2022-02-15 11:27:28,609 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 [2022-02-15 11:27:28,609 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 [2022-02-15 11:27:28,609 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] [2022-02-15 11:27:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-02-15 11:27:28,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8994. [2022-02-15 11:27:28,732 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) [2022-02-15 11:27:28,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24284 transitions. [2022-02-15 11:27:28,749 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24284 transitions. Word has length 109 [2022-02-15 11:27:28,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:28,750 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24284 transitions. [2022-02-15 11:27:28,750 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) [2022-02-15 11:27:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24284 transitions. [2022-02-15 11:27:28,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:28,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:28,761 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] [2022-02-15 11:27:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-15 11:27:28,761 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1881550740, now seen corresponding path program 122 times [2022-02-15 11:27:28,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:28,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823467252] [2022-02-15 11:27:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:28,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:28,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:28,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823467252] [2022-02-15 11:27:28,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823467252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:28,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:28,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:28,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570189001] [2022-02-15 11:27:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:28,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:28,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:28,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:28,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:28,888 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) [2022-02-15 11:27:29,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:29,687 INFO L93 Difference]: Finished difference Result 11271 states and 30302 transitions. [2022-02-15 11:27:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 11:27:29,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:29,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:29,705 INFO L225 Difference]: With dead ends: 11271 [2022-02-15 11:27:29,705 INFO L226 Difference]: Without dead ends: 10657 [2022-02-15 11:27:29,705 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 [2022-02-15 11:27:29,706 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:29,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 3410 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:29,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2022-02-15 11:27:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 8998. [2022-02-15 11:27:29,840 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) [2022-02-15 11:27:29,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24291 transitions. [2022-02-15 11:27:29,858 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24291 transitions. Word has length 109 [2022-02-15 11:27:29,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:29,858 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24291 transitions. [2022-02-15 11:27:29,858 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) [2022-02-15 11:27:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24291 transitions. [2022-02-15 11:27:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:29,870 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:29,870 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] [2022-02-15 11:27:29,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-15 11:27:29,870 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:29,871 INFO L85 PathProgramCache]: Analyzing trace with hash 824254586, now seen corresponding path program 123 times [2022-02-15 11:27:29,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:29,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207993455] [2022-02-15 11:27:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:29,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:29,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:29,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207993455] [2022-02-15 11:27:29,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207993455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:29,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:29,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:29,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291570049] [2022-02-15 11:27:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:29,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:29,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:29,992 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) [2022-02-15 11:27:30,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:30,721 INFO L93 Difference]: Finished difference Result 11139 states and 29960 transitions. [2022-02-15 11:27:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:27:30,721 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 [2022-02-15 11:27:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:30,738 INFO L225 Difference]: With dead ends: 11139 [2022-02-15 11:27:30,738 INFO L226 Difference]: Without dead ends: 10568 [2022-02-15 11:27:30,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:27:30,739 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 429 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2785 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 [2022-02-15 11:27:30,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2785 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-02-15 11:27:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 9002. [2022-02-15 11:27:30,872 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) [2022-02-15 11:27:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24298 transitions. [2022-02-15 11:27:30,890 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24298 transitions. Word has length 109 [2022-02-15 11:27:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:30,890 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24298 transitions. [2022-02-15 11:27:30,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24298 transitions. [2022-02-15 11:27:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:30,902 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:30,903 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] [2022-02-15 11:27:30,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-15 11:27:30,903 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1681150256, now seen corresponding path program 124 times [2022-02-15 11:27:30,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:30,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68870166] [2022-02-15 11:27:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:30,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:31,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:31,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68870166] [2022-02-15 11:27:31,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68870166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:31,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:31,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:31,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623149761] [2022-02-15 11:27:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:31,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:31,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:31,024 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) [2022-02-15 11:27:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:31,589 INFO L93 Difference]: Finished difference Result 11030 states and 29675 transitions. [2022-02-15 11:27:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:31,590 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:31,608 INFO L225 Difference]: With dead ends: 11030 [2022-02-15 11:27:31,608 INFO L226 Difference]: Without dead ends: 10502 [2022-02-15 11:27:31,608 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 [2022-02-15 11:27:31,609 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 [2022-02-15 11:27:31,609 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] [2022-02-15 11:27:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-02-15 11:27:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 9006. [2022-02-15 11:27:31,736 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) [2022-02-15 11:27:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24305 transitions. [2022-02-15 11:27:31,754 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24305 transitions. Word has length 109 [2022-02-15 11:27:31,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:31,755 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24305 transitions. [2022-02-15 11:27:31,755 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) [2022-02-15 11:27:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24305 transitions. [2022-02-15 11:27:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:31,767 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:31,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:31,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-15 11:27:31,767 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash 105784698, now seen corresponding path program 125 times [2022-02-15 11:27:31,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:31,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776044145] [2022-02-15 11:27:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:31,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:31,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:31,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776044145] [2022-02-15 11:27:31,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776044145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:31,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:31,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:31,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978092387] [2022-02-15 11:27:31,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:31,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:31,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:31,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:31,910 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) [2022-02-15 11:27:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:32,441 INFO L93 Difference]: Finished difference Result 10898 states and 29333 transitions. [2022-02-15 11:27:32,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:32,441 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 [2022-02-15 11:27:32,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:32,458 INFO L225 Difference]: With dead ends: 10898 [2022-02-15 11:27:32,458 INFO L226 Difference]: Without dead ends: 10413 [2022-02-15 11:27:32,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:32,458 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:32,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3100 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2022-02-15 11:27:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 9010. [2022-02-15 11:27:32,595 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) [2022-02-15 11:27:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24312 transitions. [2022-02-15 11:27:32,614 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24312 transitions. Word has length 109 [2022-02-15 11:27:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:32,614 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24312 transitions. [2022-02-15 11:27:32,614 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) [2022-02-15 11:27:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24312 transitions. [2022-02-15 11:27:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:32,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:32,628 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] [2022-02-15 11:27:32,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-15 11:27:32,628 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:32,628 INFO L85 PathProgramCache]: Analyzing trace with hash 787405352, now seen corresponding path program 126 times [2022-02-15 11:27:32,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:32,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356426503] [2022-02-15 11:27:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:32,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:32,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:32,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356426503] [2022-02-15 11:27:32,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356426503] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:32,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:32,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:32,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028879350] [2022-02-15 11:27:32,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:32,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:32,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:32,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:32,783 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) [2022-02-15 11:27:33,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:33,208 INFO L93 Difference]: Finished difference Result 10728 states and 28870 transitions. [2022-02-15 11:27:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:27:33,208 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 [2022-02-15 11:27:33,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:33,226 INFO L225 Difference]: With dead ends: 10728 [2022-02-15 11:27:33,226 INFO L226 Difference]: Without dead ends: 10192 [2022-02-15 11:27:33,226 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 [2022-02-15 11:27:33,226 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 232 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3028 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 [2022-02-15 11:27:33,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3028 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10192 states. [2022-02-15 11:27:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10192 to 8956. [2022-02-15 11:27:33,344 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) [2022-02-15 11:27:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 24196 transitions. [2022-02-15 11:27:33,361 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 24196 transitions. Word has length 109 [2022-02-15 11:27:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:33,361 INFO L470 AbstractCegarLoop]: Abstraction has 8956 states and 24196 transitions. [2022-02-15 11:27:33,361 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) [2022-02-15 11:27:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 24196 transitions. [2022-02-15 11:27:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:33,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:33,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:33,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-15 11:27:33,373 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:33,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:33,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1754725222, now seen corresponding path program 127 times [2022-02-15 11:27:33,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:33,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300743520] [2022-02-15 11:27:33,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:33,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:33,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:33,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:33,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300743520] [2022-02-15 11:27:33,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300743520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:33,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:33,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:33,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49892472] [2022-02-15 11:27:33,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:33,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:33,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:33,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:33,515 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) [2022-02-15 11:27:34,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:34,017 INFO L93 Difference]: Finished difference Result 12078 states and 32580 transitions. [2022-02-15 11:27:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:34,018 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 [2022-02-15 11:27:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:34,036 INFO L225 Difference]: With dead ends: 12078 [2022-02-15 11:27:34,036 INFO L226 Difference]: Without dead ends: 11593 [2022-02-15 11:27:34,036 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 [2022-02-15 11:27:34,036 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 223 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 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 [2022-02-15 11:27:34,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3415 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2022-02-15 11:27:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 8992. [2022-02-15 11:27:34,160 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) [2022-02-15 11:27:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24291 transitions. [2022-02-15 11:27:34,177 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24291 transitions. Word has length 109 [2022-02-15 11:27:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:34,177 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24291 transitions. [2022-02-15 11:27:34,177 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) [2022-02-15 11:27:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24291 transitions. [2022-02-15 11:27:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:34,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:34,189 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] [2022-02-15 11:27:34,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-15 11:27:34,189 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:34,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1858621420, now seen corresponding path program 128 times [2022-02-15 11:27:34,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:34,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615177036] [2022-02-15 11:27:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:34,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:34,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:34,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615177036] [2022-02-15 11:27:34,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615177036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:34,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:34,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:34,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254606890] [2022-02-15 11:27:34,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:34,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:34,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:34,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:34,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:34,333 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) [2022-02-15 11:27:34,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:34,834 INFO L93 Difference]: Finished difference Result 12044 states and 32491 transitions. [2022-02-15 11:27:34,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:34,835 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 [2022-02-15 11:27:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:34,854 INFO L225 Difference]: With dead ends: 12044 [2022-02-15 11:27:34,854 INFO L226 Difference]: Without dead ends: 11558 [2022-02-15 11:27:34,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:34,854 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 223 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3254 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 [2022-02-15 11:27:34,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3254 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:34,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-02-15 11:27:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8988. [2022-02-15 11:27:34,992 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) [2022-02-15 11:27:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24280 transitions. [2022-02-15 11:27:35,010 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24280 transitions. Word has length 109 [2022-02-15 11:27:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:35,010 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24280 transitions. [2022-02-15 11:27:35,010 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) [2022-02-15 11:27:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24280 transitions. [2022-02-15 11:27:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:35,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:35,023 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] [2022-02-15 11:27:35,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-15 11:27:35,023 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1157933864, now seen corresponding path program 129 times [2022-02-15 11:27:35,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:35,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494556910] [2022-02-15 11:27:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:35,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:35,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:35,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494556910] [2022-02-15 11:27:35,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494556910] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:35,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:35,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:35,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165097790] [2022-02-15 11:27:35,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:35,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:35,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:35,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:35,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:35,154 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) [2022-02-15 11:27:35,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:35,777 INFO L93 Difference]: Finished difference Result 12080 states and 32586 transitions. [2022-02-15 11:27:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:35,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:35,796 INFO L225 Difference]: With dead ends: 12080 [2022-02-15 11:27:35,796 INFO L226 Difference]: Without dead ends: 11554 [2022-02-15 11:27:35,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:27:35,797 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 272 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:35,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3523 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-02-15 11:27:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 8984. [2022-02-15 11:27:35,927 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) [2022-02-15 11:27:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24269 transitions. [2022-02-15 11:27:35,945 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24269 transitions. Word has length 109 [2022-02-15 11:27:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:35,945 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24269 transitions. [2022-02-15 11:27:35,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24269 transitions. [2022-02-15 11:27:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:35,956 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:35,957 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] [2022-02-15 11:27:35,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-15 11:27:35,957 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash 992956968, now seen corresponding path program 130 times [2022-02-15 11:27:35,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:35,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818220303] [2022-02-15 11:27:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:35,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:36,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:36,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818220303] [2022-02-15 11:27:36,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818220303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:36,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:36,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:36,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682721873] [2022-02-15 11:27:36,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:36,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:36,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:36,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:36,085 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) [2022-02-15 11:27:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:36,864 INFO L93 Difference]: Finished difference Result 12252 states and 33031 transitions. [2022-02-15 11:27:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:27:36,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:36,885 INFO L225 Difference]: With dead ends: 12252 [2022-02-15 11:27:36,885 INFO L226 Difference]: Without dead ends: 11686 [2022-02-15 11:27:36,885 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 [2022-02-15 11:27:36,885 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 347 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3395 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 [2022-02-15 11:27:36,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3395 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:36,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2022-02-15 11:27:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 8980. [2022-02-15 11:27:37,020 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) [2022-02-15 11:27:37,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24258 transitions. [2022-02-15 11:27:37,037 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24258 transitions. Word has length 109 [2022-02-15 11:27:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:37,037 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24258 transitions. [2022-02-15 11:27:37,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24258 transitions. [2022-02-15 11:27:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:37,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:37,050 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] [2022-02-15 11:27:37,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-15 11:27:37,050 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1509597844, now seen corresponding path program 131 times [2022-02-15 11:27:37,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:37,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003904188] [2022-02-15 11:27:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:37,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:37,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:37,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003904188] [2022-02-15 11:27:37,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003904188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:37,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:37,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:37,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232388919] [2022-02-15 11:27:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:37,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:37,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:37,177 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) [2022-02-15 11:27:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:37,701 INFO L93 Difference]: Finished difference Result 12154 states and 32785 transitions. [2022-02-15 11:27:37,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:37,721 INFO L225 Difference]: With dead ends: 12154 [2022-02-15 11:27:37,721 INFO L226 Difference]: Without dead ends: 11669 [2022-02-15 11:27:37,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:37,722 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 227 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:37,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 3427 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2022-02-15 11:27:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 8992. [2022-02-15 11:27:37,862 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) [2022-02-15 11:27:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-15 11:27:37,880 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-15 11:27:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:37,880 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-15 11:27:37,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-15 11:27:37,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:37,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:37,892 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] [2022-02-15 11:27:37,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-15 11:27:37,892 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash -827977190, now seen corresponding path program 132 times [2022-02-15 11:27:37,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:37,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241192725] [2022-02-15 11:27:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:37,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:38,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:38,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241192725] [2022-02-15 11:27:38,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241192725] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:38,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:38,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:38,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731143950] [2022-02-15 11:27:38,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:38,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:38,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:38,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:38,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:38,031 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) [2022-02-15 11:27:38,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:38,598 INFO L93 Difference]: Finished difference Result 12112 states and 32674 transitions. [2022-02-15 11:27:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:38,598 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 [2022-02-15 11:27:38,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:38,616 INFO L225 Difference]: With dead ends: 12112 [2022-02-15 11:27:38,616 INFO L226 Difference]: Without dead ends: 11626 [2022-02-15 11:27:38,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:38,616 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 225 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:27:38,617 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] [2022-02-15 11:27:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2022-02-15 11:27:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 8988. [2022-02-15 11:27:38,740 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) [2022-02-15 11:27:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-15 11:27:38,758 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-15 11:27:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:38,758 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-15 11:27:38,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-15 11:27:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:38,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:38,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-15 11:27:38,772 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:38,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash -127289634, now seen corresponding path program 133 times [2022-02-15 11:27:38,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:38,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596294851] [2022-02-15 11:27:38,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:38,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:38,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:38,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596294851] [2022-02-15 11:27:38,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596294851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:38,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:38,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:38,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853987581] [2022-02-15 11:27:38,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:38,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:38,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:38,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:38,895 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) [2022-02-15 11:27:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:39,547 INFO L93 Difference]: Finished difference Result 12240 states and 33006 transitions. [2022-02-15 11:27:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:39,547 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 [2022-02-15 11:27:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:39,564 INFO L225 Difference]: With dead ends: 12240 [2022-02-15 11:27:39,564 INFO L226 Difference]: Without dead ends: 11714 [2022-02-15 11:27:39,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:27:39,565 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 295 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 3335 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 [2022-02-15 11:27:39,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 3335 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-02-15 11:27:39,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8984. [2022-02-15 11:27:39,691 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) [2022-02-15 11:27:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-15 11:27:39,709 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-15 11:27:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:39,710 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-15 11:27:39,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-15 11:27:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:39,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:39,722 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] [2022-02-15 11:27:39,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-15 11:27:39,722 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash 950398394, now seen corresponding path program 134 times [2022-02-15 11:27:39,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:39,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516261692] [2022-02-15 11:27:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:39,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:39,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:39,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516261692] [2022-02-15 11:27:39,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516261692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:39,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:39,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:39,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869068433] [2022-02-15 11:27:39,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:39,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:39,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:39,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:39,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:39,840 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) [2022-02-15 11:27:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:40,447 INFO L93 Difference]: Finished difference Result 12242 states and 32998 transitions. [2022-02-15 11:27:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:27:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:40,466 INFO L225 Difference]: With dead ends: 12242 [2022-02-15 11:27:40,466 INFO L226 Difference]: Without dead ends: 11714 [2022-02-15 11:27:40,466 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 [2022-02-15 11:27:40,466 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 285 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:40,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3527 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:40,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-02-15 11:27:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8988. [2022-02-15 11:27:40,642 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) [2022-02-15 11:27:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:27:40,665 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:27:40,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:40,666 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:27:40,666 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) [2022-02-15 11:27:40,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:27:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:40,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:40,681 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] [2022-02-15 11:27:40,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-15 11:27:40,681 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633948, now seen corresponding path program 135 times [2022-02-15 11:27:40,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:40,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811065605] [2022-02-15 11:27:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:40,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:40,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:40,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811065605] [2022-02-15 11:27:40,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811065605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:40,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:40,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:40,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724025579] [2022-02-15 11:27:40,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:40,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:40,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:40,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:40,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:40,807 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) [2022-02-15 11:27:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:41,341 INFO L93 Difference]: Finished difference Result 12094 states and 32612 transitions. [2022-02-15 11:27:41,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:41,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:41,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:41,358 INFO L225 Difference]: With dead ends: 12094 [2022-02-15 11:27:41,358 INFO L226 Difference]: Without dead ends: 11609 [2022-02-15 11:27:41,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:41,359 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 228 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:41,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3440 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2022-02-15 11:27:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 8992. [2022-02-15 11:27:41,490 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) [2022-02-15 11:27:41,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:27:41,509 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:27:41,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:41,509 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:27:41,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:27:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:41,521 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:41,522 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:41,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-15 11:27:41,522 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:41,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash -876013294, now seen corresponding path program 136 times [2022-02-15 11:27:41,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:41,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664734000] [2022-02-15 11:27:41,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:41,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:41,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:41,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664734000] [2022-02-15 11:27:41,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664734000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:41,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:41,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:41,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822095380] [2022-02-15 11:27:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:41,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:41,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:41,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:41,640 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) [2022-02-15 11:27:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:42,112 INFO L93 Difference]: Finished difference Result 12012 states and 32391 transitions. [2022-02-15 11:27:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:42,112 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 [2022-02-15 11:27:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:42,129 INFO L225 Difference]: With dead ends: 12012 [2022-02-15 11:27:42,129 INFO L226 Difference]: Without dead ends: 11514 [2022-02-15 11:27:42,130 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 [2022-02-15 11:27:42,130 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 212 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3411 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 [2022-02-15 11:27:42,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3411 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:42,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-02-15 11:27:42,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8976. [2022-02-15 11:27:42,240 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) [2022-02-15 11:27:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24247 transitions. [2022-02-15 11:27:42,256 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24247 transitions. Word has length 109 [2022-02-15 11:27:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:42,256 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24247 transitions. [2022-02-15 11:27:42,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24247 transitions. [2022-02-15 11:27:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:42,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:42,269 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] [2022-02-15 11:27:42,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-15 11:27:42,269 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:42,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash -427653532, now seen corresponding path program 137 times [2022-02-15 11:27:42,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:42,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971440037] [2022-02-15 11:27:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:42,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:42,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:42,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971440037] [2022-02-15 11:27:42,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971440037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:42,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:42,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:42,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061160039] [2022-02-15 11:27:42,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:42,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:42,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:42,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:42,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:42,391 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) [2022-02-15 11:27:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:42,898 INFO L93 Difference]: Finished difference Result 12030 states and 32444 transitions. [2022-02-15 11:27:42,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:42,899 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:42,918 INFO L225 Difference]: With dead ends: 12030 [2022-02-15 11:27:42,918 INFO L226 Difference]: Without dead ends: 11545 [2022-02-15 11:27:42,919 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 [2022-02-15 11:27:42,919 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 [2022-02-15 11:27:42,919 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] [2022-02-15 11:27:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-02-15 11:27:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 8992. [2022-02-15 11:27:43,055 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) [2022-02-15 11:27:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-15 11:27:43,073 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-15 11:27:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:43,073 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-15 11:27:43,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-15 11:27:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:43,084 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:43,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:43,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-15 11:27:43,085 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:43,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:43,085 INFO L85 PathProgramCache]: Analyzing trace with hash 253967122, now seen corresponding path program 138 times [2022-02-15 11:27:43,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:43,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775011675] [2022-02-15 11:27:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:43,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:43,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:43,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775011675] [2022-02-15 11:27:43,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775011675] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:43,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:43,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:43,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858502429] [2022-02-15 11:27:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:43,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:43,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:43,205 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) [2022-02-15 11:27:43,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:43,720 INFO L93 Difference]: Finished difference Result 11988 states and 32333 transitions. [2022-02-15 11:27:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:43,739 INFO L225 Difference]: With dead ends: 11988 [2022-02-15 11:27:43,739 INFO L226 Difference]: Without dead ends: 11502 [2022-02-15 11:27:43,739 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 [2022-02-15 11:27:43,739 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 213 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3425 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 [2022-02-15 11:27:43,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3425 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:43,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2022-02-15 11:27:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 8988. [2022-02-15 11:27:43,867 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) [2022-02-15 11:27:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-15 11:27:43,885 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-15 11:27:43,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:43,885 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-15 11:27:43,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:43,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-15 11:27:43,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:43,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:43,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:43,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-15 11:27:43,897 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:43,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:43,897 INFO L85 PathProgramCache]: Analyzing trace with hash 954654678, now seen corresponding path program 139 times [2022-02-15 11:27:43,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:43,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224466328] [2022-02-15 11:27:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:43,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:44,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:44,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224466328] [2022-02-15 11:27:44,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224466328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:44,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:44,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:44,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102752977] [2022-02-15 11:27:44,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:44,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:44,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:44,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:44,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:44,040 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) [2022-02-15 11:27:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:44,640 INFO L93 Difference]: Finished difference Result 12116 states and 32665 transitions. [2022-02-15 11:27:44,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:27:44,641 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 [2022-02-15 11:27:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:44,659 INFO L225 Difference]: With dead ends: 12116 [2022-02-15 11:27:44,659 INFO L226 Difference]: Without dead ends: 11590 [2022-02-15 11:27:44,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 11:27:44,660 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 291 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2792 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 [2022-02-15 11:27:44,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2792 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:27:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-02-15 11:27:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 8984. [2022-02-15 11:27:44,784 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) [2022-02-15 11:27:44,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-15 11:27:44,802 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-15 11:27:44,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:44,802 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-15 11:27:44,802 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) [2022-02-15 11:27:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-15 11:27:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:44,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:44,814 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] [2022-02-15 11:27:44,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-15 11:27:44,814 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2032342706, now seen corresponding path program 140 times [2022-02-15 11:27:44,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:44,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901131027] [2022-02-15 11:27:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:44,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:44,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:44,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901131027] [2022-02-15 11:27:44,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901131027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:44,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:44,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:44,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745944803] [2022-02-15 11:27:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:44,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:44,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:44,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:44,958 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) [2022-02-15 11:27:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:45,712 INFO L93 Difference]: Finished difference Result 12198 states and 32877 transitions. [2022-02-15 11:27:45,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:45,713 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:45,731 INFO L225 Difference]: With dead ends: 12198 [2022-02-15 11:27:45,731 INFO L226 Difference]: Without dead ends: 11670 [2022-02-15 11:27:45,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:27:45,732 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 282 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:27:45,732 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] [2022-02-15 11:27:45,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2022-02-15 11:27:45,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 8988. [2022-02-15 11:27:45,857 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) [2022-02-15 11:27:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:27:45,874 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:27:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:45,874 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:27:45,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:27:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:45,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:45,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:45,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-15 11:27:45,886 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:45,886 INFO L85 PathProgramCache]: Analyzing trace with hash -475689636, now seen corresponding path program 141 times [2022-02-15 11:27:45,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:45,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485796973] [2022-02-15 11:27:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:45,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:46,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:46,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485796973] [2022-02-15 11:27:46,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485796973] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:46,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:46,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:46,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494597176] [2022-02-15 11:27:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:46,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:46,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:46,017 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) [2022-02-15 11:27:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:46,539 INFO L93 Difference]: Finished difference Result 12034 states and 32447 transitions. [2022-02-15 11:27:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:46,539 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 [2022-02-15 11:27:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:46,557 INFO L225 Difference]: With dead ends: 12034 [2022-02-15 11:27:46,557 INFO L226 Difference]: Without dead ends: 11549 [2022-02-15 11:27:46,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:46,558 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 [2022-02-15 11:27:46,558 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] [2022-02-15 11:27:46,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11549 states. [2022-02-15 11:27:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11549 to 8992. [2022-02-15 11:27:46,691 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) [2022-02-15 11:27:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:27:46,710 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:27:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:46,710 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:27:46,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:27:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:46,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:46,722 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] [2022-02-15 11:27:46,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-15 11:27:46,722 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash 205931018, now seen corresponding path program 142 times [2022-02-15 11:27:46,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:46,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562342434] [2022-02-15 11:27:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:46,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:46,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:46,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562342434] [2022-02-15 11:27:46,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562342434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:46,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:46,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:46,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944254070] [2022-02-15 11:27:46,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:46,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:46,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:46,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:46,871 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) [2022-02-15 11:27:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:47,440 INFO L93 Difference]: Finished difference Result 11968 states and 32270 transitions. [2022-02-15 11:27:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:47,458 INFO L225 Difference]: With dead ends: 11968 [2022-02-15 11:27:47,458 INFO L226 Difference]: Without dead ends: 11474 [2022-02-15 11:27:47,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:47,458 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 219 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-02-15 11:27:47,458 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] [2022-02-15 11:27:47,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-02-15 11:27:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 8980. [2022-02-15 11:27:47,589 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) [2022-02-15 11:27:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-15 11:27:47,608 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-15 11:27:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:47,608 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-15 11:27:47,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-15 11:27:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:47,620 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:47,621 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] [2022-02-15 11:27:47,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-15 11:27:47,621 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash 528864870, now seen corresponding path program 143 times [2022-02-15 11:27:47,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:47,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164909498] [2022-02-15 11:27:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:47,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:47,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:47,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:47,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164909498] [2022-02-15 11:27:47,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164909498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:47,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:47,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:47,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714934264] [2022-02-15 11:27:47,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:47,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:47,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:47,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:47,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:47,767 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) [2022-02-15 11:27:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:48,486 INFO L93 Difference]: Finished difference Result 12111 states and 32619 transitions. [2022-02-15 11:27:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:27:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:48,506 INFO L225 Difference]: With dead ends: 12111 [2022-02-15 11:27:48,507 INFO L226 Difference]: Without dead ends: 11540 [2022-02-15 11:27:48,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 11:27:48,507 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 [2022-02-15 11:27:48,507 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] [2022-02-15 11:27:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2022-02-15 11:27:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 8984. [2022-02-15 11:27:48,641 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) [2022-02-15 11:27:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:27:48,660 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:27:48,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:48,660 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:27:48,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:48,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:27:48,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:48,673 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:48,673 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:48,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-15 11:27:48,673 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:48,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:48,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1976539972, now seen corresponding path program 144 times [2022-02-15 11:27:48,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:48,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557276835] [2022-02-15 11:27:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:48,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:48,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:48,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557276835] [2022-02-15 11:27:48,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557276835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:48,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:48,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:48,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942970985] [2022-02-15 11:27:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:48,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:48,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:48,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:48,793 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) [2022-02-15 11:27:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:49,491 INFO L93 Difference]: Finished difference Result 12098 states and 32598 transitions. [2022-02-15 11:27:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:49,508 INFO L225 Difference]: With dead ends: 12098 [2022-02-15 11:27:49,508 INFO L226 Difference]: Without dead ends: 11570 [2022-02-15 11:27:49,508 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 [2022-02-15 11:27:49,508 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 282 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3552 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 [2022-02-15 11:27:49,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3552 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2022-02-15 11:27:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 8988. [2022-02-15 11:27:49,643 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) [2022-02-15 11:27:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:27:49,662 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:27:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:49,662 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:27:49,662 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) [2022-02-15 11:27:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:27:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:49,674 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:49,675 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] [2022-02-15 11:27:49,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-15 11:27:49,675 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash -189605018, now seen corresponding path program 145 times [2022-02-15 11:27:49,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:49,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776419855] [2022-02-15 11:27:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:49,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:49,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:49,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776419855] [2022-02-15 11:27:49,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776419855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:49,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:49,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:49,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226223276] [2022-02-15 11:27:49,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:49,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:49,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:49,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:49,814 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) [2022-02-15 11:27:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:50,361 INFO L93 Difference]: Finished difference Result 11934 states and 32168 transitions. [2022-02-15 11:27:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:50,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:50,378 INFO L225 Difference]: With dead ends: 11934 [2022-02-15 11:27:50,378 INFO L226 Difference]: Without dead ends: 11449 [2022-02-15 11:27:50,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:50,378 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 223 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3304 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 [2022-02-15 11:27:50,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3304 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-02-15 11:27:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 8992. [2022-02-15 11:27:50,503 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) [2022-02-15 11:27:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:27:50,521 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:27:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:50,521 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:27:50,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:27:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:50,533 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:50,533 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] [2022-02-15 11:27:50,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-15 11:27:50,533 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:50,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:50,533 INFO L85 PathProgramCache]: Analyzing trace with hash 492015636, now seen corresponding path program 146 times [2022-02-15 11:27:50,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:50,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756855171] [2022-02-15 11:27:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:50,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:50,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:50,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756855171] [2022-02-15 11:27:50,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756855171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:50,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:50,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:50,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713831917] [2022-02-15 11:27:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:50,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:50,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:50,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:50,653 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) [2022-02-15 11:27:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:51,110 INFO L93 Difference]: Finished difference Result 11868 states and 31991 transitions. [2022-02-15 11:27:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:51,110 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:51,130 INFO L225 Difference]: With dead ends: 11868 [2022-02-15 11:27:51,130 INFO L226 Difference]: Without dead ends: 11366 [2022-02-15 11:27:51,130 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 [2022-02-15 11:27:51,131 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 204 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3433 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 [2022-02-15 11:27:51,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3433 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-02-15 11:27:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 8972. [2022-02-15 11:27:51,272 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) [2022-02-15 11:27:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24236 transitions. [2022-02-15 11:27:51,290 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24236 transitions. Word has length 109 [2022-02-15 11:27:51,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:51,291 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24236 transitions. [2022-02-15 11:27:51,291 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) [2022-02-15 11:27:51,291 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24236 transitions. [2022-02-15 11:27:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:51,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:51,303 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] [2022-02-15 11:27:51,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-15 11:27:51,303 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -520821786, now seen corresponding path program 147 times [2022-02-15 11:27:51,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:51,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320127034] [2022-02-15 11:27:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:51,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:51,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:51,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320127034] [2022-02-15 11:27:51,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320127034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:51,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:51,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:51,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906362958] [2022-02-15 11:27:51,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:51,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:51,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:51,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:51,444 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) [2022-02-15 11:27:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:51,935 INFO L93 Difference]: Finished difference Result 11938 states and 32191 transitions. [2022-02-15 11:27:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:27:51,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:51,954 INFO L225 Difference]: With dead ends: 11938 [2022-02-15 11:27:51,954 INFO L226 Difference]: Without dead ends: 11453 [2022-02-15 11:27:51,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:27:51,955 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 228 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3260 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 [2022-02-15 11:27:51,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3260 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-02-15 11:27:52,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 8992. [2022-02-15 11:27:52,085 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) [2022-02-15 11:27:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-15 11:27:52,103 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-15 11:27:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:52,104 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-15 11:27:52,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-15 11:27:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:52,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:52,116 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] [2022-02-15 11:27:52,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-15 11:27:52,116 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash 160798868, now seen corresponding path program 148 times [2022-02-15 11:27:52,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:52,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393423642] [2022-02-15 11:27:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:52,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:52,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:52,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393423642] [2022-02-15 11:27:52,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393423642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:52,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:52,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:52,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608667134] [2022-02-15 11:27:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:52,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:52,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:52,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:52,233 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) [2022-02-15 11:27:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:52,732 INFO L93 Difference]: Finished difference Result 11904 states and 32102 transitions. [2022-02-15 11:27:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:52,750 INFO L225 Difference]: With dead ends: 11904 [2022-02-15 11:27:52,750 INFO L226 Difference]: Without dead ends: 11418 [2022-02-15 11:27:52,750 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 [2022-02-15 11:27:52,751 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 [2022-02-15 11:27:52,751 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] [2022-02-15 11:27:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-02-15 11:27:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8988. [2022-02-15 11:27:52,874 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) [2022-02-15 11:27:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-15 11:27:52,892 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-15 11:27:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:52,892 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-15 11:27:52,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-15 11:27:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:52,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:52,903 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] [2022-02-15 11:27:52,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-15 11:27:52,903 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:52,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash 861486424, now seen corresponding path program 149 times [2022-02-15 11:27:52,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:52,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902856630] [2022-02-15 11:27:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:52,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:53,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:53,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902856630] [2022-02-15 11:27:53,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902856630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:53,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:53,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:53,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589293778] [2022-02-15 11:27:53,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:53,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:53,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:53,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:53,028 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) [2022-02-15 11:27:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:53,659 INFO L93 Difference]: Finished difference Result 11940 states and 32197 transitions. [2022-02-15 11:27:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:27:53,659 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 [2022-02-15 11:27:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:53,676 INFO L225 Difference]: With dead ends: 11940 [2022-02-15 11:27:53,677 INFO L226 Difference]: Without dead ends: 11414 [2022-02-15 11:27:53,677 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 [2022-02-15 11:27:53,677 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:53,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3083 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-02-15 11:27:53,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 8984. [2022-02-15 11:27:53,805 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) [2022-02-15 11:27:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-15 11:27:53,824 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-15 11:27:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:53,824 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-15 11:27:53,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-15 11:27:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:53,836 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:53,836 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] [2022-02-15 11:27:53,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-15 11:27:53,836 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1282590040, now seen corresponding path program 150 times [2022-02-15 11:27:53,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:53,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404518274] [2022-02-15 11:27:53,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:53,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:53,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:53,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404518274] [2022-02-15 11:27:53,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404518274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:53,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:53,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:53,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788727319] [2022-02-15 11:27:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:53,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:53,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:53,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:53,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:53,965 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) [2022-02-15 11:27:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:54,726 INFO L93 Difference]: Finished difference Result 12168 states and 32796 transitions. [2022-02-15 11:27:54,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:27:54,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:54,744 INFO L225 Difference]: With dead ends: 12168 [2022-02-15 11:27:54,744 INFO L226 Difference]: Without dead ends: 11602 [2022-02-15 11:27:54,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 11:27:54,745 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 347 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3129 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 [2022-02-15 11:27:54,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3129 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-02-15 11:27:54,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 8980. [2022-02-15 11:27:54,876 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) [2022-02-15 11:27:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-15 11:27:54,893 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-15 11:27:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:54,893 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-15 11:27:54,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-15 11:27:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:54,905 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:54,906 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] [2022-02-15 11:27:54,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-15 11:27:54,906 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:54,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 509822444, now seen corresponding path program 151 times [2022-02-15 11:27:54,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:54,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567406179] [2022-02-15 11:27:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:54,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:55,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:55,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567406179] [2022-02-15 11:27:55,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567406179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:55,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:55,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:55,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313689558] [2022-02-15 11:27:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:55,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:55,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:55,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:55,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:55,028 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) [2022-02-15 11:27:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:55,594 INFO L93 Difference]: Finished difference Result 11914 states and 32121 transitions. [2022-02-15 11:27:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:55,595 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 [2022-02-15 11:27:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:55,612 INFO L225 Difference]: With dead ends: 11914 [2022-02-15 11:27:55,612 INFO L226 Difference]: Without dead ends: 11429 [2022-02-15 11:27:55,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:55,613 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 229 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3265 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 [2022-02-15 11:27:55,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3265 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-02-15 11:27:55,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 8992. [2022-02-15 11:27:55,740 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) [2022-02-15 11:27:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:27:55,758 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:27:55,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:55,758 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:27:55,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:27:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:55,769 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:55,769 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] [2022-02-15 11:27:55,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-15 11:27:55,769 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:55,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:55,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1191443098, now seen corresponding path program 152 times [2022-02-15 11:27:55,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:55,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123276089] [2022-02-15 11:27:55,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:55,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:55,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:55,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123276089] [2022-02-15 11:27:55,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123276089] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:55,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:55,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:55,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813533064] [2022-02-15 11:27:55,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:55,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:55,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:55,895 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) [2022-02-15 11:27:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:56,416 INFO L93 Difference]: Finished difference Result 11872 states and 32010 transitions. [2022-02-15 11:27:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:56,416 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 [2022-02-15 11:27:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:56,434 INFO L225 Difference]: With dead ends: 11872 [2022-02-15 11:27:56,435 INFO L226 Difference]: Without dead ends: 11386 [2022-02-15 11:27:56,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:27:56,435 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 211 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:27:56,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 3426 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2022-02-15 11:27:56,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 8988. [2022-02-15 11:27:56,560 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) [2022-02-15 11:27:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:27:56,578 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:27:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:56,578 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:27:56,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:56,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:27:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:56,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:56,590 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] [2022-02-15 11:27:56,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-15 11:27:56,590 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:56,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1892130654, now seen corresponding path program 153 times [2022-02-15 11:27:56,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:56,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794798932] [2022-02-15 11:27:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:56,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:56,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:56,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794798932] [2022-02-15 11:27:56,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794798932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:56,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:56,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:56,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119916487] [2022-02-15 11:27:56,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:56,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:56,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:56,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:56,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:56,717 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) [2022-02-15 11:27:57,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:57,353 INFO L93 Difference]: Finished difference Result 12040 states and 32452 transitions. [2022-02-15 11:27:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:27:57,353 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 [2022-02-15 11:27:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:57,371 INFO L225 Difference]: With dead ends: 12040 [2022-02-15 11:27:57,371 INFO L226 Difference]: Without dead ends: 11514 [2022-02-15 11:27:57,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:27:57,372 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 282 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3237 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 [2022-02-15 11:27:57,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3237 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-02-15 11:27:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8984. [2022-02-15 11:27:57,507 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) [2022-02-15 11:27:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:27:57,526 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:27:57,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:57,526 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:27:57,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:27:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:57,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:57,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:57,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-15 11:27:57,538 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1325148614, now seen corresponding path program 154 times [2022-02-15 11:27:57,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:57,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107279496] [2022-02-15 11:27:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:57,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:57,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:57,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107279496] [2022-02-15 11:27:57,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107279496] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:57,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:57,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:57,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277544936] [2022-02-15 11:27:57,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:57,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:57,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:57,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:57,661 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) [2022-02-15 11:27:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:58,271 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-02-15 11:27:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:27:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:58,289 INFO L225 Difference]: With dead ends: 11958 [2022-02-15 11:27:58,290 INFO L226 Difference]: Without dead ends: 11430 [2022-02-15 11:27:58,290 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 [2022-02-15 11:27:58,290 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 [2022-02-15 11:27:58,290 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] [2022-02-15 11:27:58,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-02-15 11:27:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-02-15 11:27:58,423 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) [2022-02-15 11:27:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:27:58,442 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:27:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:58,442 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:27:58,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:27:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:58,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:58,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:58,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-15 11:27:58,455 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:58,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:58,455 INFO L85 PathProgramCache]: Analyzing trace with hash 461786340, now seen corresponding path program 155 times [2022-02-15 11:27:58,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:58,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630367136] [2022-02-15 11:27:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:58,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:58,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:58,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630367136] [2022-02-15 11:27:58,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630367136] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:58,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:58,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:58,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396905142] [2022-02-15 11:27:58,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:58,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:58,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:58,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:58,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:58,583 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) [2022-02-15 11:27:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:59,164 INFO L93 Difference]: Finished difference Result 11858 states and 31959 transitions. [2022-02-15 11:27:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:27:59,165 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:27:59,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:59,181 INFO L225 Difference]: With dead ends: 11858 [2022-02-15 11:27:59,181 INFO L226 Difference]: Without dead ends: 11373 [2022-02-15 11:27:59,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:27:59,181 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 229 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3283 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 [2022-02-15 11:27:59,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3283 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:59,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2022-02-15 11:27:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 8992. [2022-02-15 11:27:59,297 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) [2022-02-15 11:27:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:27:59,315 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:27:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:27:59,315 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:27:59,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:27:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:27:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:27:59,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:27:59,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:27:59,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-15 11:27:59,327 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:27:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:27:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1143406994, now seen corresponding path program 156 times [2022-02-15 11:27:59,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:27:59,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660813793] [2022-02-15 11:27:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:27:59,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:27:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:27:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:27:59,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:27:59,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660813793] [2022-02-15 11:27:59,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660813793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:27:59,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:27:59,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:27:59,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31283257] [2022-02-15 11:27:59,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:27:59,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:27:59,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:27:59,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:27:59,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:27:59,448 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) [2022-02-15 11:27:59,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:27:59,926 INFO L93 Difference]: Finished difference Result 11808 states and 31826 transitions. [2022-02-15 11:27:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:27:59,927 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 [2022-02-15 11:27:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:27:59,946 INFO L225 Difference]: With dead ends: 11808 [2022-02-15 11:27:59,946 INFO L226 Difference]: Without dead ends: 11310 [2022-02-15 11:27:59,946 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 [2022-02-15 11:27:59,946 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 204 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3437 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 [2022-02-15 11:27:59,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3437 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:27:59,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-02-15 11:28:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 8976. [2022-02-15 11:28:00,085 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) [2022-02-15 11:28:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-15 11:28:00,103 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-15 11:28:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:00,103 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-15 11:28:00,103 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) [2022-02-15 11:28:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-15 11:28:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:00,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:00,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:00,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-15 11:28:00,115 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash 957822372, now seen corresponding path program 157 times [2022-02-15 11:28:00,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:00,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457364234] [2022-02-15 11:28:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:00,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:00,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:00,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457364234] [2022-02-15 11:28:00,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457364234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:00,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:00,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:00,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593584748] [2022-02-15 11:28:00,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:00,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:00,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:00,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:00,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:00,232 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) [2022-02-15 11:28:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:00,699 INFO L93 Difference]: Finished difference Result 11750 states and 31670 transitions. [2022-02-15 11:28:00,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:28:00,699 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 [2022-02-15 11:28:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:00,719 INFO L225 Difference]: With dead ends: 11750 [2022-02-15 11:28:00,719 INFO L226 Difference]: Without dead ends: 11265 [2022-02-15 11:28:00,719 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 [2022-02-15 11:28:00,719 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 222 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 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 [2022-02-15 11:28:00,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3256 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11265 states. [2022-02-15 11:28:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11265 to 8992. [2022-02-15 11:28:00,862 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) [2022-02-15 11:28:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:00,880 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:00,881 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:00,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:00,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:00,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:00,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-15 11:28:00,893 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:00,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:00,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1639443026, now seen corresponding path program 158 times [2022-02-15 11:28:00,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:00,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842157607] [2022-02-15 11:28:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:00,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:01,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:01,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842157607] [2022-02-15 11:28:01,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842157607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:01,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:01,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:01,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76449936] [2022-02-15 11:28:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:01,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:01,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:01,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:01,010 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) [2022-02-15 11:28:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:01,503 INFO L93 Difference]: Finished difference Result 11720 states and 31592 transitions. [2022-02-15 11:28:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:01,503 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 [2022-02-15 11:28:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:01,522 INFO L225 Difference]: With dead ends: 11720 [2022-02-15 11:28:01,522 INFO L226 Difference]: Without dead ends: 11234 [2022-02-15 11:28:01,522 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 [2022-02-15 11:28:01,522 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 209 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3435 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 [2022-02-15 11:28:01,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3435 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-02-15 11:28:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8988. [2022-02-15 11:28:01,635 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) [2022-02-15 11:28:01,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:01,652 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:01,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:01,652 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:01,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:01,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:01,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:01,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:01,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-15 11:28:01,663 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:01,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:01,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1954836714, now seen corresponding path program 159 times [2022-02-15 11:28:01,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:01,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322305288] [2022-02-15 11:28:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:01,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:01,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:01,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322305288] [2022-02-15 11:28:01,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322305288] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:01,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:01,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:01,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764514746] [2022-02-15 11:28:01,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:01,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:01,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:01,789 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) [2022-02-15 11:28:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:02,414 INFO L93 Difference]: Finished difference Result 11756 states and 31687 transitions. [2022-02-15 11:28:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:02,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:02,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:02,432 INFO L225 Difference]: With dead ends: 11756 [2022-02-15 11:28:02,433 INFO L226 Difference]: Without dead ends: 11230 [2022-02-15 11:28:02,433 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 [2022-02-15 11:28:02,433 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:02,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2996 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-15 11:28:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8984. [2022-02-15 11:28:02,563 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) [2022-02-15 11:28:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:02,582 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:02,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:02,582 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:02,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:02,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:02,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:02,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:02,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:02,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-15 11:28:02,594 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:02,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash 196054118, now seen corresponding path program 160 times [2022-02-15 11:28:02,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:02,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958569430] [2022-02-15 11:28:02,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:02,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:02,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:02,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958569430] [2022-02-15 11:28:02,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958569430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:02,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:02,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:02,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175464606] [2022-02-15 11:28:02,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:02,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:02,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:02,748 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) [2022-02-15 11:28:03,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:03,593 INFO L93 Difference]: Finished difference Result 11792 states and 31782 transitions. [2022-02-15 11:28:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:28:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:03,611 INFO L225 Difference]: With dead ends: 11792 [2022-02-15 11:28:03,612 INFO L226 Difference]: Without dead ends: 11226 [2022-02-15 11:28:03,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:28:03,612 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 311 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 3345 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 [2022-02-15 11:28:03,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 3345 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:03,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2022-02-15 11:28:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 8980. [2022-02-15 11:28:03,743 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) [2022-02-15 11:28:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-15 11:28:03,761 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-15 11:28:03,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:03,761 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-15 11:28:03,761 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) [2022-02-15 11:28:03,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-15 11:28:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:03,772 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:03,772 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] [2022-02-15 11:28:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-15 11:28:03,772 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1160245466, now seen corresponding path program 161 times [2022-02-15 11:28:03,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:03,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168538185] [2022-02-15 11:28:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:03,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:03,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:03,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168538185] [2022-02-15 11:28:03,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168538185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:03,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:03,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:03,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211945741] [2022-02-15 11:28:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:03,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:03,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:03,892 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) [2022-02-15 11:28:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:04,671 INFO L93 Difference]: Finished difference Result 11976 states and 32252 transitions. [2022-02-15 11:28:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 11:28:04,671 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:04,689 INFO L225 Difference]: With dead ends: 11976 [2022-02-15 11:28:04,690 INFO L226 Difference]: Without dead ends: 11362 [2022-02-15 11:28:04,690 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 [2022-02-15 11:28:04,690 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:04,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3452 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2022-02-15 11:28:04,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 8968. [2022-02-15 11:28:04,821 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) [2022-02-15 11:28:04,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24225 transitions. [2022-02-15 11:28:04,839 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24225 transitions. Word has length 109 [2022-02-15 11:28:04,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:04,839 INFO L470 AbstractCegarLoop]: Abstraction has 8968 states and 24225 transitions. [2022-02-15 11:28:04,839 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) [2022-02-15 11:28:04,839 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24225 transitions. [2022-02-15 11:28:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:04,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:04,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:04,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-15 11:28:04,851 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:04,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1809823296, now seen corresponding path program 162 times [2022-02-15 11:28:04,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:04,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594486852] [2022-02-15 11:28:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:04,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:04,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:04,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594486852] [2022-02-15 11:28:04,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594486852] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:04,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:04,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:04,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361141003] [2022-02-15 11:28:04,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:04,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:04,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:04,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:04,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:04,974 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) [2022-02-15 11:28:05,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:05,485 INFO L93 Difference]: Finished difference Result 11686 states and 31498 transitions. [2022-02-15 11:28:05,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:05,485 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:05,504 INFO L225 Difference]: With dead ends: 11686 [2022-02-15 11:28:05,504 INFO L226 Difference]: Without dead ends: 11201 [2022-02-15 11:28:05,504 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 [2022-02-15 11:28:05,504 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 213 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3269 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 [2022-02-15 11:28:05,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3269 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:05,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11201 states. [2022-02-15 11:28:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11201 to 8992. [2022-02-15 11:28:05,637 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) [2022-02-15 11:28:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-15 11:28:05,654 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-15 11:28:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:05,654 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-15 11:28:05,655 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) [2022-02-15 11:28:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-15 11:28:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:05,667 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:05,667 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] [2022-02-15 11:28:05,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-15 11:28:05,668 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:05,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1128202642, now seen corresponding path program 163 times [2022-02-15 11:28:05,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:05,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087071341] [2022-02-15 11:28:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:05,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:05,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:05,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087071341] [2022-02-15 11:28:05,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087071341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:05,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:05,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:05,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865481397] [2022-02-15 11:28:05,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:05,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:05,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:05,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:05,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:05,787 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) [2022-02-15 11:28:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:06,305 INFO L93 Difference]: Finished difference Result 11652 states and 31409 transitions. [2022-02-15 11:28:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:06,305 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:06,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:06,324 INFO L225 Difference]: With dead ends: 11652 [2022-02-15 11:28:06,324 INFO L226 Difference]: Without dead ends: 11166 [2022-02-15 11:28:06,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:06,324 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 [2022-02-15 11:28:06,324 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] [2022-02-15 11:28:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-15 11:28:06,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-02-15 11:28:06,453 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) [2022-02-15 11:28:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-15 11:28:06,470 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-15 11:28:06,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:06,470 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-15 11:28:06,470 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) [2022-02-15 11:28:06,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-15 11:28:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:06,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:06,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:06,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-15 11:28:06,483 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:06,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash -427515086, now seen corresponding path program 164 times [2022-02-15 11:28:06,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:06,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613157423] [2022-02-15 11:28:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:06,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:06,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:06,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613157423] [2022-02-15 11:28:06,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613157423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:06,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:06,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:06,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305216762] [2022-02-15 11:28:06,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:06,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:06,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:06,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:06,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:06,624 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) [2022-02-15 11:28:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:07,311 INFO L93 Difference]: Finished difference Result 11688 states and 31504 transitions. [2022-02-15 11:28:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:07,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:07,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:07,329 INFO L225 Difference]: With dead ends: 11688 [2022-02-15 11:28:07,329 INFO L226 Difference]: Without dead ends: 11162 [2022-02-15 11:28:07,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:07,329 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 269 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3182 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 [2022-02-15 11:28:07,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3182 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:07,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-02-15 11:28:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-02-15 11:28:07,457 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) [2022-02-15 11:28:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-15 11:28:07,474 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-15 11:28:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:07,475 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-15 11:28:07,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-15 11:28:07,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:07,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:07,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:07,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-15 11:28:07,487 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:07,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:07,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1723375746, now seen corresponding path program 165 times [2022-02-15 11:28:07,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:07,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554757504] [2022-02-15 11:28:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:07,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:07,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:07,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554757504] [2022-02-15 11:28:07,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554757504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:07,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:07,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:07,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811453069] [2022-02-15 11:28:07,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:07,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:07,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:07,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:07,608 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) [2022-02-15 11:28:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:08,351 INFO L93 Difference]: Finished difference Result 11832 states and 31872 transitions. [2022-02-15 11:28:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:28:08,351 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:08,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:08,368 INFO L225 Difference]: With dead ends: 11832 [2022-02-15 11:28:08,368 INFO L226 Difference]: Without dead ends: 11266 [2022-02-15 11:28:08,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 11:28:08,369 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 330 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 2840 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 [2022-02-15 11:28:08,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 2840 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-15 11:28:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8980. [2022-02-15 11:28:08,496 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) [2022-02-15 11:28:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-15 11:28:08,514 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-15 11:28:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:08,514 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-15 11:28:08,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:08,514 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-15 11:28:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:08,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:08,526 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] [2022-02-15 11:28:08,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-15 11:28:08,526 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash -779179066, now seen corresponding path program 166 times [2022-02-15 11:28:08,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:08,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265609226] [2022-02-15 11:28:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:08,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:08,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:08,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265609226] [2022-02-15 11:28:08,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265609226] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:08,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:08,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:08,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64071721] [2022-02-15 11:28:08,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:08,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:08,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:08,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:08,659 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) [2022-02-15 11:28:09,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:09,235 INFO L93 Difference]: Finished difference Result 11758 states and 31692 transitions. [2022-02-15 11:28:09,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:09,236 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 [2022-02-15 11:28:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:09,253 INFO L225 Difference]: With dead ends: 11758 [2022-02-15 11:28:09,253 INFO L226 Difference]: Without dead ends: 11273 [2022-02-15 11:28:09,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:28:09,254 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-15 11:28:09,254 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] [2022-02-15 11:28:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-02-15 11:28:09,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 8992. [2022-02-15 11:28:09,389 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) [2022-02-15 11:28:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:09,407 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:09,407 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:09,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:09,420 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:09,420 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] [2022-02-15 11:28:09,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-15 11:28:09,420 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:09,420 INFO L85 PathProgramCache]: Analyzing trace with hash -97558412, now seen corresponding path program 167 times [2022-02-15 11:28:09,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:09,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565173897] [2022-02-15 11:28:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:09,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:09,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:09,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565173897] [2022-02-15 11:28:09,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565173897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:09,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:09,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:09,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436632977] [2022-02-15 11:28:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:09,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:09,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:09,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:09,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:09,535 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) [2022-02-15 11:28:10,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:10,033 INFO L93 Difference]: Finished difference Result 11716 states and 31581 transitions. [2022-02-15 11:28:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:10,033 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 [2022-02-15 11:28:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:10,052 INFO L225 Difference]: With dead ends: 11716 [2022-02-15 11:28:10,052 INFO L226 Difference]: Without dead ends: 11230 [2022-02-15 11:28:10,053 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 [2022-02-15 11:28:10,053 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 210 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3280 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 [2022-02-15 11:28:10,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3280 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-15 11:28:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8988. [2022-02-15 11:28:10,183 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) [2022-02-15 11:28:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:10,201 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:10,201 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:10,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:10,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:10,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:10,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:10,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-15 11:28:10,213 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash 603129144, now seen corresponding path program 168 times [2022-02-15 11:28:10,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:10,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945135715] [2022-02-15 11:28:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:10,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:10,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:10,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945135715] [2022-02-15 11:28:10,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945135715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:10,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:10,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:10,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981919669] [2022-02-15 11:28:10,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:10,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:10,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:10,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:10,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:10,333 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) [2022-02-15 11:28:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:10,941 INFO L93 Difference]: Finished difference Result 11844 states and 31913 transitions. [2022-02-15 11:28:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:10,941 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 [2022-02-15 11:28:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:10,959 INFO L225 Difference]: With dead ends: 11844 [2022-02-15 11:28:10,959 INFO L226 Difference]: Without dead ends: 11318 [2022-02-15 11:28:10,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:28:10,959 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 282 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2809 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 [2022-02-15 11:28:10,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2809 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-02-15 11:28:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8984. [2022-02-15 11:28:11,085 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) [2022-02-15 11:28:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:11,103 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:11,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:11,104 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:11,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:11,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:11,116 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] [2022-02-15 11:28:11,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-15 11:28:11,116 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:11,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1680817172, now seen corresponding path program 169 times [2022-02-15 11:28:11,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:11,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629300798] [2022-02-15 11:28:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:11,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:11,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:11,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629300798] [2022-02-15 11:28:11,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629300798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:11,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:11,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:11,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729801244] [2022-02-15 11:28:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:11,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:11,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:11,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:11,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:11,267 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) [2022-02-15 11:28:11,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:11,900 INFO L93 Difference]: Finished difference Result 11846 states and 31905 transitions. [2022-02-15 11:28:11,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:28:11,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:11,919 INFO L225 Difference]: With dead ends: 11846 [2022-02-15 11:28:11,919 INFO L226 Difference]: Without dead ends: 11318 [2022-02-15 11:28:11,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:28:11,919 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 274 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3117 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 [2022-02-15 11:28:11,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3117 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-02-15 11:28:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8988. [2022-02-15 11:28:12,048 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) [2022-02-15 11:28:12,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:28:12,069 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:28:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:12,069 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:28:12,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:28:12,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:12,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:12,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:12,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-15 11:28:12,082 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash -827215170, now seen corresponding path program 170 times [2022-02-15 11:28:12,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:12,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591330701] [2022-02-15 11:28:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:12,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:12,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:12,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591330701] [2022-02-15 11:28:12,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591330701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:12,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:12,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:12,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166678619] [2022-02-15 11:28:12,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:12,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:12,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:12,198 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) [2022-02-15 11:28:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:12,729 INFO L93 Difference]: Finished difference Result 11698 states and 31519 transitions. [2022-02-15 11:28:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:12,748 INFO L225 Difference]: With dead ends: 11698 [2022-02-15 11:28:12,748 INFO L226 Difference]: Without dead ends: 11213 [2022-02-15 11:28:12,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:12,749 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 218 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3460 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 [2022-02-15 11:28:12,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3460 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-02-15 11:28:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 8992. [2022-02-15 11:28:12,884 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) [2022-02-15 11:28:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:28:12,902 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:28:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:12,902 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:28:12,902 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) [2022-02-15 11:28:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:28:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:12,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:12,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:12,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-15 11:28:12,914 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:12,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -145594516, now seen corresponding path program 171 times [2022-02-15 11:28:12,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:12,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830859404] [2022-02-15 11:28:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:12,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:13,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:13,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830859404] [2022-02-15 11:28:13,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830859404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:13,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:13,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:13,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450846255] [2022-02-15 11:28:13,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:13,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:13,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:13,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:13,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:13,031 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) [2022-02-15 11:28:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:13,510 INFO L93 Difference]: Finished difference Result 11616 states and 31298 transitions. [2022-02-15 11:28:13,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:13,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:13,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:13,528 INFO L225 Difference]: With dead ends: 11616 [2022-02-15 11:28:13,529 INFO L226 Difference]: Without dead ends: 11118 [2022-02-15 11:28:13,529 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 [2022-02-15 11:28:13,529 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 208 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3089 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 [2022-02-15 11:28:13,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3089 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-02-15 11:28:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8976. [2022-02-15 11:28:13,662 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) [2022-02-15 11:28:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-15 11:28:13,680 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-15 11:28:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:13,680 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-15 11:28:13,680 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) [2022-02-15 11:28:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-15 11:28:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:13,692 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:13,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:13,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-15 11:28:13,692 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:13,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:13,692 INFO L85 PathProgramCache]: Analyzing trace with hash 302765246, now seen corresponding path program 172 times [2022-02-15 11:28:13,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:13,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807028126] [2022-02-15 11:28:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:13,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:13,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:13,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807028126] [2022-02-15 11:28:13,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807028126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:13,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:13,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:13,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697418883] [2022-02-15 11:28:13,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:13,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:13,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:13,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:13,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:13,814 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) [2022-02-15 11:28:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:14,319 INFO L93 Difference]: Finished difference Result 11794 states and 31791 transitions. [2022-02-15 11:28:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:14,319 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:14,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:14,339 INFO L225 Difference]: With dead ends: 11794 [2022-02-15 11:28:14,339 INFO L226 Difference]: Without dead ends: 11309 [2022-02-15 11:28:14,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:14,340 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 227 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3127 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 [2022-02-15 11:28:14,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 3127 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-02-15 11:28:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-02-15 11:28:14,474 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) [2022-02-15 11:28:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:14,492 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:14,492 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:14,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:14,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:14,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:14,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-15 11:28:14,504 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash 984385900, now seen corresponding path program 173 times [2022-02-15 11:28:14,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:14,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174800520] [2022-02-15 11:28:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:14,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:14,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:14,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174800520] [2022-02-15 11:28:14,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174800520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:14,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:14,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:14,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302653378] [2022-02-15 11:28:14,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:14,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:14,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:14,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:14,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:14,623 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) [2022-02-15 11:28:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:15,137 INFO L93 Difference]: Finished difference Result 11752 states and 31680 transitions. [2022-02-15 11:28:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:15,155 INFO L225 Difference]: With dead ends: 11752 [2022-02-15 11:28:15,155 INFO L226 Difference]: Without dead ends: 11266 [2022-02-15 11:28:15,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:15,156 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:15,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3108 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-15 11:28:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-02-15 11:28:15,282 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) [2022-02-15 11:28:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:15,300 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:15,300 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:15,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:15,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:15,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:15,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:15,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-15 11:28:15,312 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:15,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1685073456, now seen corresponding path program 174 times [2022-02-15 11:28:15,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:15,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787931522] [2022-02-15 11:28:15,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:15,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:15,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:15,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:15,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787931522] [2022-02-15 11:28:15,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787931522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:15,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:15,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:15,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382509051] [2022-02-15 11:28:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:15,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:15,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:15,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:15,449 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) [2022-02-15 11:28:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:16,052 INFO L93 Difference]: Finished difference Result 11860 states and 31957 transitions. [2022-02-15 11:28:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:28:16,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:16,070 INFO L225 Difference]: With dead ends: 11860 [2022-02-15 11:28:16,070 INFO L226 Difference]: Without dead ends: 11334 [2022-02-15 11:28:16,071 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 [2022-02-15 11:28:16,071 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3519 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 [2022-02-15 11:28:16,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3519 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-15 11:28:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8984. [2022-02-15 11:28:16,203 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) [2022-02-15 11:28:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:16,221 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:16,221 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:16,221 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) [2022-02-15 11:28:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:16,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:16,233 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] [2022-02-15 11:28:16,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-15 11:28:16,233 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:16,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1532205812, now seen corresponding path program 175 times [2022-02-15 11:28:16,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:16,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464551979] [2022-02-15 11:28:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:16,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:16,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:16,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464551979] [2022-02-15 11:28:16,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464551979] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:16,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:16,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:16,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149249358] [2022-02-15 11:28:16,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:16,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:16,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:16,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:16,356 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) [2022-02-15 11:28:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:16,998 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-02-15 11:28:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:16,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:17,017 INFO L225 Difference]: With dead ends: 11958 [2022-02-15 11:28:17,018 INFO L226 Difference]: Without dead ends: 11430 [2022-02-15 11:28:17,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:17,018 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 [2022-02-15 11:28:17,018 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] [2022-02-15 11:28:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-02-15 11:28:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-02-15 11:28:17,156 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) [2022-02-15 11:28:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:28:17,176 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:28:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:17,176 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:28:17,176 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) [2022-02-15 11:28:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:28:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:17,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:17,189 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] [2022-02-15 11:28:17,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-15 11:28:17,189 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 254729142, now seen corresponding path program 176 times [2022-02-15 11:28:17,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:17,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732260011] [2022-02-15 11:28:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:17,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:17,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:17,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732260011] [2022-02-15 11:28:17,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732260011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:17,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:17,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:17,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653125553] [2022-02-15 11:28:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:17,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:17,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:17,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:17,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:17,310 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) [2022-02-15 11:28:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:17,859 INFO L93 Difference]: Finished difference Result 11794 states and 31783 transitions. [2022-02-15 11:28:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:17,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:17,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:17,878 INFO L225 Difference]: With dead ends: 11794 [2022-02-15 11:28:17,878 INFO L226 Difference]: Without dead ends: 11309 [2022-02-15 11:28:17,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:17,879 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 222 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3473 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 [2022-02-15 11:28:17,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3473 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-02-15 11:28:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-02-15 11:28:18,014 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) [2022-02-15 11:28:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:28:18,032 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:28:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:18,032 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:28:18,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:18,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:28:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:18,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:18,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:18,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-15 11:28:18,044 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:18,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:18,044 INFO L85 PathProgramCache]: Analyzing trace with hash 936349796, now seen corresponding path program 177 times [2022-02-15 11:28:18,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:18,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982155079] [2022-02-15 11:28:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:18,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:18,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:18,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982155079] [2022-02-15 11:28:18,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982155079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:18,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:18,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:18,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12858777] [2022-02-15 11:28:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:18,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:18,162 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) [2022-02-15 11:28:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:18,662 INFO L93 Difference]: Finished difference Result 11728 states and 31606 transitions. [2022-02-15 11:28:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:18,681 INFO L225 Difference]: With dead ends: 11728 [2022-02-15 11:28:18,681 INFO L226 Difference]: Without dead ends: 11234 [2022-02-15 11:28:18,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:28:18,682 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 [2022-02-15 11:28:18,682 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] [2022-02-15 11:28:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-02-15 11:28:18,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8980. [2022-02-15 11:28:18,855 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) [2022-02-15 11:28:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-15 11:28:18,873 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-15 11:28:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:18,873 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-15 11:28:18,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-15 11:28:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:18,885 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:18,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:18,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-15 11:28:18,886 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:18,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1259283648, now seen corresponding path program 178 times [2022-02-15 11:28:18,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:18,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988899449] [2022-02-15 11:28:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:18,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:19,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:19,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988899449] [2022-02-15 11:28:19,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988899449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:19,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:19,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:19,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587296369] [2022-02-15 11:28:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:19,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:19,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:19,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:19,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:19,002 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) [2022-02-15 11:28:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:19,696 INFO L93 Difference]: Finished difference Result 11979 states and 32252 transitions. [2022-02-15 11:28:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:28:19,696 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 [2022-02-15 11:28:19,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:19,715 INFO L225 Difference]: With dead ends: 11979 [2022-02-15 11:28:19,715 INFO L226 Difference]: Without dead ends: 11408 [2022-02-15 11:28:19,715 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 [2022-02-15 11:28:19,716 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 [2022-02-15 11:28:19,716 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] [2022-02-15 11:28:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-02-15 11:28:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 8984. [2022-02-15 11:28:19,851 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) [2022-02-15 11:28:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-15 11:28:19,869 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-15 11:28:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:19,869 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-15 11:28:19,869 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) [2022-02-15 11:28:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-15 11:28:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:19,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:19,881 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] [2022-02-15 11:28:19,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-15 11:28:19,881 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:19,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1246121194, now seen corresponding path program 179 times [2022-02-15 11:28:19,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:19,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904491824] [2022-02-15 11:28:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:19,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:19,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:19,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904491824] [2022-02-15 11:28:19,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904491824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:19,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:19,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:19,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775631532] [2022-02-15 11:28:19,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:19,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:19,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:19,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:19,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:19,997 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) [2022-02-15 11:28:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:20,623 INFO L93 Difference]: Finished difference Result 11862 states and 31945 transitions. [2022-02-15 11:28:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:20,623 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:20,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:20,642 INFO L225 Difference]: With dead ends: 11862 [2022-02-15 11:28:20,642 INFO L226 Difference]: Without dead ends: 11334 [2022-02-15 11:28:20,642 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 [2022-02-15 11:28:20,643 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 [2022-02-15 11:28:20,643 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] [2022-02-15 11:28:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-15 11:28:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8988. [2022-02-15 11:28:20,773 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) [2022-02-15 11:28:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-02-15 11:28:20,791 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-02-15 11:28:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:20,792 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-02-15 11:28:20,792 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) [2022-02-15 11:28:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-02-15 11:28:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:20,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:20,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:20,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-15 11:28:20,804 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:20,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash 540813760, now seen corresponding path program 180 times [2022-02-15 11:28:20,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:20,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65923833] [2022-02-15 11:28:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:20,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:20,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:20,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65923833] [2022-02-15 11:28:20,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65923833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:20,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:20,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:20,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191816803] [2022-02-15 11:28:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:20,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:20,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:20,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:20,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:20,922 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) [2022-02-15 11:28:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:21,425 INFO L93 Difference]: Finished difference Result 11714 states and 31559 transitions. [2022-02-15 11:28:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:21,426 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 [2022-02-15 11:28:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:21,443 INFO L225 Difference]: With dead ends: 11714 [2022-02-15 11:28:21,443 INFO L226 Difference]: Without dead ends: 11229 [2022-02-15 11:28:21,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:21,444 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 230 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3132 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 [2022-02-15 11:28:21,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-02-15 11:28:21,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 8992. [2022-02-15 11:28:21,566 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) [2022-02-15 11:28:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-02-15 11:28:21,584 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-02-15 11:28:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:21,584 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-02-15 11:28:21,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-02-15 11:28:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:21,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:21,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:21,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-15 11:28:21,597 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:21,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1222434414, now seen corresponding path program 181 times [2022-02-15 11:28:21,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:21,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955282989] [2022-02-15 11:28:21,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:21,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:21,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:21,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955282989] [2022-02-15 11:28:21,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955282989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:21,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:21,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:21,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185277373] [2022-02-15 11:28:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:21,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:21,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:21,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:21,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:21,715 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) [2022-02-15 11:28:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:22,170 INFO L93 Difference]: Finished difference Result 11616 states and 31294 transitions. [2022-02-15 11:28:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:22,171 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:22,189 INFO L225 Difference]: With dead ends: 11616 [2022-02-15 11:28:22,190 INFO L226 Difference]: Without dead ends: 11114 [2022-02-15 11:28:22,190 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 [2022-02-15 11:28:22,190 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 209 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3076 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 [2022-02-15 11:28:22,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3076 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:22,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2022-02-15 11:28:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 8972. [2022-02-15 11:28:22,330 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) [2022-02-15 11:28:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-02-15 11:28:22,349 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-02-15 11:28:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:22,349 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-02-15 11:28:22,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-02-15 11:28:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:22,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:22,362 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] [2022-02-15 11:28:22,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-15 11:28:22,362 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -690474580, now seen corresponding path program 182 times [2022-02-15 11:28:22,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:22,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732177919] [2022-02-15 11:28:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:22,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:22,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:22,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732177919] [2022-02-15 11:28:22,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732177919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:22,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:22,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:22,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826375114] [2022-02-15 11:28:22,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:22,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:22,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:22,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:22,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:22,476 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) [2022-02-15 11:28:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:22,979 INFO L93 Difference]: Finished difference Result 11622 states and 31318 transitions. [2022-02-15 11:28:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:22,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:22,996 INFO L225 Difference]: With dead ends: 11622 [2022-02-15 11:28:22,997 INFO L226 Difference]: Without dead ends: 11137 [2022-02-15 11:28:22,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:22,997 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 217 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3294 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 [2022-02-15 11:28:22,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 3294 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-02-15 11:28:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-02-15 11:28:23,128 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) [2022-02-15 11:28:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:23,146 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:23,146 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:23,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:23,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:23,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:23,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:23,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-15 11:28:23,159 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:23,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:23,159 INFO L85 PathProgramCache]: Analyzing trace with hash -8853926, now seen corresponding path program 183 times [2022-02-15 11:28:23,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:23,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130604815] [2022-02-15 11:28:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:23,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:23,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:23,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130604815] [2022-02-15 11:28:23,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130604815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:23,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:23,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:23,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55433635] [2022-02-15 11:28:23,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:23,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:23,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:23,294 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) [2022-02-15 11:28:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:23,868 INFO L93 Difference]: Finished difference Result 11580 states and 31207 transitions. [2022-02-15 11:28:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:23,869 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 [2022-02-15 11:28:23,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:23,886 INFO L225 Difference]: With dead ends: 11580 [2022-02-15 11:28:23,887 INFO L226 Difference]: Without dead ends: 11094 [2022-02-15 11:28:23,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:23,887 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 207 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:23,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3115 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-15 11:28:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 8988. [2022-02-15 11:28:24,015 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) [2022-02-15 11:28:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:24,032 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:24,032 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:24,033 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) [2022-02-15 11:28:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:24,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:24,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:24,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:24,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-15 11:28:24,044 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:24,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:24,045 INFO L85 PathProgramCache]: Analyzing trace with hash 691833630, now seen corresponding path program 184 times [2022-02-15 11:28:24,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:24,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915043835] [2022-02-15 11:28:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:24,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:24,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:24,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915043835] [2022-02-15 11:28:24,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915043835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:24,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:24,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:24,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852993506] [2022-02-15 11:28:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:24,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:24,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:24,164 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) [2022-02-15 11:28:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:24,776 INFO L93 Difference]: Finished difference Result 11688 states and 31484 transitions. [2022-02-15 11:28:24,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:28:24,776 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:24,794 INFO L225 Difference]: With dead ends: 11688 [2022-02-15 11:28:24,794 INFO L226 Difference]: Without dead ends: 11162 [2022-02-15 11:28:24,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 11:28:24,795 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 275 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3332 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 [2022-02-15 11:28:24,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3332 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:24,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-02-15 11:28:24,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-02-15 11:28:24,925 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) [2022-02-15 11:28:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:24,943 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:24,944 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:24,944 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) [2022-02-15 11:28:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:24,956 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:24,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:24,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-02-15 11:28:24,956 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521658, now seen corresponding path program 185 times [2022-02-15 11:28:24,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:24,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795101838] [2022-02-15 11:28:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:24,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:25,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:25,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795101838] [2022-02-15 11:28:25,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795101838] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:25,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:25,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:25,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407273914] [2022-02-15 11:28:25,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:25,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:25,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:25,076 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) [2022-02-15 11:28:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:25,697 INFO L93 Difference]: Finished difference Result 11786 states and 31740 transitions. [2022-02-15 11:28:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:25,715 INFO L225 Difference]: With dead ends: 11786 [2022-02-15 11:28:25,715 INFO L226 Difference]: Without dead ends: 11258 [2022-02-15 11:28:25,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:25,716 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 282 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3251 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 [2022-02-15 11:28:25,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3251 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-02-15 11:28:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8988. [2022-02-15 11:28:25,843 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) [2022-02-15 11:28:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:28:25,861 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:28:25,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:25,861 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:28:25,861 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) [2022-02-15 11:28:25,861 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:28:25,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:25,874 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:25,874 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] [2022-02-15 11:28:25,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-02-15 11:28:25,875 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:25,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:25,875 INFO L85 PathProgramCache]: Analyzing trace with hash -738510684, now seen corresponding path program 186 times [2022-02-15 11:28:25,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:25,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007282416] [2022-02-15 11:28:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:25,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:25,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:25,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007282416] [2022-02-15 11:28:25,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007282416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:25,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:25,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:25,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157091603] [2022-02-15 11:28:25,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:25,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:25,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:25,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:25,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:25,992 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) [2022-02-15 11:28:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:26,503 INFO L93 Difference]: Finished difference Result 11622 states and 31310 transitions. [2022-02-15 11:28:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:26,503 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 [2022-02-15 11:28:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:26,520 INFO L225 Difference]: With dead ends: 11622 [2022-02-15 11:28:26,520 INFO L226 Difference]: Without dead ends: 11137 [2022-02-15 11:28:26,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:26,521 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 219 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3319 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 [2022-02-15 11:28:26,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3319 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:26,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-02-15 11:28:26,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-02-15 11:28:26,641 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) [2022-02-15 11:28:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:28:26,660 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:28:26,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:26,660 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:28:26,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:26,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:28:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:26,671 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:26,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:26,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-02-15 11:28:26,671 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:26,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash -56890030, now seen corresponding path program 187 times [2022-02-15 11:28:26,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:26,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028979615] [2022-02-15 11:28:26,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:26,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:26,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:26,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:26,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028979615] [2022-02-15 11:28:26,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028979615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:26,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:26,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:26,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055549465] [2022-02-15 11:28:26,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:26,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:26,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:26,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:26,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:26,788 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) [2022-02-15 11:28:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:27,251 INFO L93 Difference]: Finished difference Result 11556 states and 31133 transitions. [2022-02-15 11:28:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:27,268 INFO L225 Difference]: With dead ends: 11556 [2022-02-15 11:28:27,269 INFO L226 Difference]: Without dead ends: 11062 [2022-02-15 11:28:27,269 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 [2022-02-15 11:28:27,269 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 213 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2936 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 [2022-02-15 11:28:27,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2936 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-02-15 11:28:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 8980. [2022-02-15 11:28:27,388 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) [2022-02-15 11:28:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-15 11:28:27,405 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-15 11:28:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:27,405 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-15 11:28:27,406 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) [2022-02-15 11:28:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-15 11:28:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:27,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:27,417 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] [2022-02-15 11:28:27,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-02-15 11:28:27,417 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:27,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:27,417 INFO L85 PathProgramCache]: Analyzing trace with hash 266043822, now seen corresponding path program 188 times [2022-02-15 11:28:27,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:27,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579834916] [2022-02-15 11:28:27,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:27,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:27,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:27,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579834916] [2022-02-15 11:28:27,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579834916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:27,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:27,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:27,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107709445] [2022-02-15 11:28:27,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:27,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:27,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:27,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:27,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:27,538 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) [2022-02-15 11:28:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:28,337 INFO L93 Difference]: Finished difference Result 11919 states and 32087 transitions. [2022-02-15 11:28:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:28:28,338 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 [2022-02-15 11:28:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:28,356 INFO L225 Difference]: With dead ends: 11919 [2022-02-15 11:28:28,356 INFO L226 Difference]: Without dead ends: 11348 [2022-02-15 11:28:28,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:28:28,357 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 342 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:28,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2904 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:28,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11348 states. [2022-02-15 11:28:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11348 to 8984. [2022-02-15 11:28:28,512 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) [2022-02-15 11:28:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-15 11:28:28,531 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-15 11:28:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:28,531 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-15 11:28:28,531 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) [2022-02-15 11:28:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-15 11:28:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:28,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:28,543 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] [2022-02-15 11:28:28,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-02-15 11:28:28,543 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:28,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2055606276, now seen corresponding path program 189 times [2022-02-15 11:28:28,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:28,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891455133] [2022-02-15 11:28:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:28,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:28,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:28,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891455133] [2022-02-15 11:28:28,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891455133] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:28,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:28,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:28,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539838019] [2022-02-15 11:28:28,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:28,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:28,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:28,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:28,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:28,657 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) [2022-02-15 11:28:29,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:29,264 INFO L93 Difference]: Finished difference Result 11794 states and 31758 transitions. [2022-02-15 11:28:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:29,265 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:29,282 INFO L225 Difference]: With dead ends: 11794 [2022-02-15 11:28:29,282 INFO L226 Difference]: Without dead ends: 11266 [2022-02-15 11:28:29,283 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 [2022-02-15 11:28:29,283 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 274 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3264 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 [2022-02-15 11:28:29,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3264 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:29,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-15 11:28:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-02-15 11:28:29,411 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) [2022-02-15 11:28:29,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-02-15 11:28:29,429 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-02-15 11:28:29,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:29,429 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-02-15 11:28:29,429 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) [2022-02-15 11:28:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-02-15 11:28:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:29,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:29,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:29,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-02-15 11:28:29,441 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:29,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash -452426066, now seen corresponding path program 190 times [2022-02-15 11:28:29,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:29,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690106113] [2022-02-15 11:28:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:29,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:29,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:29,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690106113] [2022-02-15 11:28:29,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690106113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:29,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:29,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:29,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862893607] [2022-02-15 11:28:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:29,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:29,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:29,560 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) [2022-02-15 11:28:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:30,041 INFO L93 Difference]: Finished difference Result 11630 states and 31328 transitions. [2022-02-15 11:28:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:30,042 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 [2022-02-15 11:28:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:30,059 INFO L225 Difference]: With dead ends: 11630 [2022-02-15 11:28:30,060 INFO L226 Difference]: Without dead ends: 11145 [2022-02-15 11:28:30,060 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 [2022-02-15 11:28:30,060 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 214 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2887 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 [2022-02-15 11:28:30,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2887 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-02-15 11:28:30,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 8992. [2022-02-15 11:28:30,194 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) [2022-02-15 11:28:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-02-15 11:28:30,213 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-02-15 11:28:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:30,213 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-02-15 11:28:30,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-02-15 11:28:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:30,225 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:30,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:30,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-02-15 11:28:30,225 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:30,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:30,225 INFO L85 PathProgramCache]: Analyzing trace with hash 229194588, now seen corresponding path program 191 times [2022-02-15 11:28:30,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:30,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065997638] [2022-02-15 11:28:30,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:30,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:30,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:30,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065997638] [2022-02-15 11:28:30,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065997638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:30,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:30,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:30,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828958384] [2022-02-15 11:28:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:30,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:30,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:30,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:30,337 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) [2022-02-15 11:28:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:30,768 INFO L93 Difference]: Finished difference Result 11556 states and 31129 transitions. [2022-02-15 11:28:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:30,769 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:30,785 INFO L225 Difference]: With dead ends: 11556 [2022-02-15 11:28:30,786 INFO L226 Difference]: Without dead ends: 11058 [2022-02-15 11:28:30,786 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 [2022-02-15 11:28:30,786 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 203 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3101 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 [2022-02-15 11:28:30,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3101 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11058 states. [2022-02-15 11:28:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11058 to 8976. [2022-02-15 11:28:30,908 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) [2022-02-15 11:28:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24239 transitions. [2022-02-15 11:28:30,925 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24239 transitions. Word has length 109 [2022-02-15 11:28:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:30,925 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24239 transitions. [2022-02-15 11:28:30,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24239 transitions. [2022-02-15 11:28:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:30,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:30,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:30,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-02-15 11:28:30,936 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:30,936 INFO L85 PathProgramCache]: Analyzing trace with hash 903686232, now seen corresponding path program 192 times [2022-02-15 11:28:30,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:30,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914306604] [2022-02-15 11:28:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:30,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:31,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:31,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914306604] [2022-02-15 11:28:31,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914306604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:31,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:31,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:31,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259344827] [2022-02-15 11:28:31,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:31,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:31,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:31,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:31,050 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) [2022-02-15 11:28:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:31,781 INFO L93 Difference]: Finished difference Result 11747 states and 31589 transitions. [2022-02-15 11:28:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:28:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:31,798 INFO L225 Difference]: With dead ends: 11747 [2022-02-15 11:28:31,798 INFO L226 Difference]: Without dead ends: 11133 [2022-02-15 11:28:31,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 11:28:31,799 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 416 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:31,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 3339 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-02-15 11:28:31,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 8980. [2022-02-15 11:28:31,921 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) [2022-02-15 11:28:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24246 transitions. [2022-02-15 11:28:31,936 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24246 transitions. Word has length 109 [2022-02-15 11:28:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:31,937 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24246 transitions. [2022-02-15 11:28:31,937 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) [2022-02-15 11:28:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24246 transitions. [2022-02-15 11:28:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:31,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:31,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:31,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-02-15 11:28:31,948 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:31,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash -153609922, now seen corresponding path program 193 times [2022-02-15 11:28:31,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:31,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802478780] [2022-02-15 11:28:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:31,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:32,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:32,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802478780] [2022-02-15 11:28:32,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802478780] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:32,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:32,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:32,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142563170] [2022-02-15 11:28:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:32,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:32,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:32,063 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) [2022-02-15 11:28:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:32,747 INFO L93 Difference]: Finished difference Result 11783 states and 31709 transitions. [2022-02-15 11:28:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:28:32,748 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 [2022-02-15 11:28:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:32,764 INFO L225 Difference]: With dead ends: 11783 [2022-02-15 11:28:32,765 INFO L226 Difference]: Without dead ends: 11212 [2022-02-15 11:28:32,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 11:28:32,765 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 365 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2942 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 [2022-02-15 11:28:32,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2942 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2022-02-15 11:28:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 8984. [2022-02-15 11:28:32,888 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) [2022-02-15 11:28:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24253 transitions. [2022-02-15 11:28:32,906 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24253 transitions. Word has length 109 [2022-02-15 11:28:32,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:32,907 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24253 transitions. [2022-02-15 11:28:32,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24253 transitions. [2022-02-15 11:28:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:32,918 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:32,918 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] [2022-02-15 11:28:32,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-02-15 11:28:32,919 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1635952532, now seen corresponding path program 194 times [2022-02-15 11:28:32,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:32,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404452972] [2022-02-15 11:28:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:32,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:33,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:33,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404452972] [2022-02-15 11:28:33,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404452972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:33,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:33,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:33,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104834106] [2022-02-15 11:28:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:33,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:33,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:33,063 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) [2022-02-15 11:28:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:33,762 INFO L93 Difference]: Finished difference Result 11658 states and 31380 transitions. [2022-02-15 11:28:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:33,763 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 [2022-02-15 11:28:33,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:33,780 INFO L225 Difference]: With dead ends: 11658 [2022-02-15 11:28:33,780 INFO L226 Difference]: Without dead ends: 11130 [2022-02-15 11:28:33,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:33,781 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 272 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:33,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 2716 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-02-15 11:28:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 8988. [2022-02-15 11:28:33,897 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) [2022-02-15 11:28:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24260 transitions. [2022-02-15 11:28:33,913 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24260 transitions. Word has length 109 [2022-02-15 11:28:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:33,914 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24260 transitions. [2022-02-15 11:28:33,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24260 transitions. [2022-02-15 11:28:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:33,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:33,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:33,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-02-15 11:28:33,925 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:33,925 INFO L85 PathProgramCache]: Analyzing trace with hash -872079810, now seen corresponding path program 195 times [2022-02-15 11:28:33,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:33,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156848485] [2022-02-15 11:28:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:33,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:34,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:34,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156848485] [2022-02-15 11:28:34,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156848485] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:34,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:34,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:34,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600630499] [2022-02-15 11:28:34,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:34,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:34,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:34,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:34,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:34,038 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) [2022-02-15 11:28:34,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:34,506 INFO L93 Difference]: Finished difference Result 11494 states and 30950 transitions. [2022-02-15 11:28:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:34,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:34,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:34,524 INFO L225 Difference]: With dead ends: 11494 [2022-02-15 11:28:34,524 INFO L226 Difference]: Without dead ends: 11009 [2022-02-15 11:28:34,524 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 [2022-02-15 11:28:34,524 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 211 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2993 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 [2022-02-15 11:28:34,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2993 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2022-02-15 11:28:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 8992. [2022-02-15 11:28:34,648 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) [2022-02-15 11:28:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24267 transitions. [2022-02-15 11:28:34,664 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24267 transitions. Word has length 109 [2022-02-15 11:28:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:34,665 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24267 transitions. [2022-02-15 11:28:34,665 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) [2022-02-15 11:28:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24267 transitions. [2022-02-15 11:28:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:34,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:34,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:34,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-02-15 11:28:34,676 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:34,676 INFO L85 PathProgramCache]: Analyzing trace with hash -190459156, now seen corresponding path program 196 times [2022-02-15 11:28:34,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:34,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945168468] [2022-02-15 11:28:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:34,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:34,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:34,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945168468] [2022-02-15 11:28:34,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945168468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:34,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:34,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:34,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763232593] [2022-02-15 11:28:34,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:34,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:34,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:34,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:34,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:34,794 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) [2022-02-15 11:28:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:35,200 INFO L93 Difference]: Finished difference Result 11420 states and 30751 transitions. [2022-02-15 11:28:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:28:35,201 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:35,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:35,217 INFO L225 Difference]: With dead ends: 11420 [2022-02-15 11:28:35,217 INFO L226 Difference]: Without dead ends: 10910 [2022-02-15 11:28:35,218 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 [2022-02-15 11:28:35,218 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 208 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2746 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 [2022-02-15 11:28:35,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2746 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2022-02-15 11:28:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 8964. [2022-02-15 11:28:35,331 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) [2022-02-15 11:28:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 24214 transitions. [2022-02-15 11:28:35,350 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 24214 transitions. Word has length 109 [2022-02-15 11:28:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:35,350 INFO L470 AbstractCegarLoop]: Abstraction has 8964 states and 24214 transitions. [2022-02-15 11:28:35,350 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) [2022-02-15 11:28:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 24214 transitions. [2022-02-15 11:28:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:35,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:35,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:35,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-02-15 11:28:35,361 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:35,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1602299128, now seen corresponding path program 197 times [2022-02-15 11:28:35,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:35,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086278169] [2022-02-15 11:28:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:35,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:35,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:35,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086278169] [2022-02-15 11:28:35,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086278169] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:35,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:35,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:35,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077500766] [2022-02-15 11:28:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:35,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:35,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:35,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:35,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:35,477 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) [2022-02-15 11:28:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:35,975 INFO L93 Difference]: Finished difference Result 11530 states and 31069 transitions. [2022-02-15 11:28:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:35,975 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 [2022-02-15 11:28:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:35,992 INFO L225 Difference]: With dead ends: 11530 [2022-02-15 11:28:35,992 INFO L226 Difference]: Without dead ends: 11045 [2022-02-15 11:28:35,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:35,993 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 271 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3419 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 [2022-02-15 11:28:35,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3419 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:36,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-02-15 11:28:36,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8996. [2022-02-15 11:28:36,126 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) [2022-02-15 11:28:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24298 transitions. [2022-02-15 11:28:36,144 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24298 transitions. Word has length 109 [2022-02-15 11:28:36,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:36,144 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24298 transitions. [2022-02-15 11:28:36,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:36,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24298 transitions. [2022-02-15 11:28:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:36,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:36,156 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] [2022-02-15 11:28:36,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-02-15 11:28:36,156 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash -920678474, now seen corresponding path program 198 times [2022-02-15 11:28:36,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:36,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142509138] [2022-02-15 11:28:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:36,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:36,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:36,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142509138] [2022-02-15 11:28:36,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142509138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:36,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:36,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:36,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065728475] [2022-02-15 11:28:36,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:36,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:36,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:36,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:36,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:36,276 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) [2022-02-15 11:28:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:36,799 INFO L93 Difference]: Finished difference Result 11496 states and 30980 transitions. [2022-02-15 11:28:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:36,799 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:36,817 INFO L225 Difference]: With dead ends: 11496 [2022-02-15 11:28:36,817 INFO L226 Difference]: Without dead ends: 11010 [2022-02-15 11:28:36,817 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 [2022-02-15 11:28:36,817 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 265 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 3635 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 [2022-02-15 11:28:36,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 3635 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:36,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-15 11:28:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8992. [2022-02-15 11:28:36,947 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) [2022-02-15 11:28:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-15 11:28:36,964 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-15 11:28:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:36,964 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-15 11:28:36,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-15 11:28:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:36,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:36,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:36,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-02-15 11:28:36,975 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:36,976 INFO L85 PathProgramCache]: Analyzing trace with hash -219990918, now seen corresponding path program 199 times [2022-02-15 11:28:36,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:36,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230955316] [2022-02-15 11:28:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:36,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:37,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:37,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230955316] [2022-02-15 11:28:37,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230955316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:37,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:37,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:37,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895314495] [2022-02-15 11:28:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:37,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:37,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:37,095 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) [2022-02-15 11:28:37,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:37,748 INFO L93 Difference]: Finished difference Result 11532 states and 31075 transitions. [2022-02-15 11:28:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:37,748 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 [2022-02-15 11:28:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:37,766 INFO L225 Difference]: With dead ends: 11532 [2022-02-15 11:28:37,766 INFO L226 Difference]: Without dead ends: 11006 [2022-02-15 11:28:37,766 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 [2022-02-15 11:28:37,766 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 324 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3733 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 [2022-02-15 11:28:37,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 3733 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-02-15 11:28:37,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 8988. [2022-02-15 11:28:37,924 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) [2022-02-15 11:28:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-15 11:28:37,941 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-15 11:28:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:37,941 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-15 11:28:37,941 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) [2022-02-15 11:28:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-15 11:28:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:37,952 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:37,953 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] [2022-02-15 11:28:37,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-02-15 11:28:37,953 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1930899914, now seen corresponding path program 200 times [2022-02-15 11:28:37,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:37,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837231188] [2022-02-15 11:28:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:37,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:38,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:38,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837231188] [2022-02-15 11:28:38,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837231188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:38,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:38,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:38,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299166663] [2022-02-15 11:28:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:38,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:38,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:38,070 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) [2022-02-15 11:28:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:38,754 INFO L93 Difference]: Finished difference Result 11704 states and 31520 transitions. [2022-02-15 11:28:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:28:38,754 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:38,770 INFO L225 Difference]: With dead ends: 11704 [2022-02-15 11:28:38,770 INFO L226 Difference]: Without dead ends: 11138 [2022-02-15 11:28:38,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 11:28:38,771 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 409 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2753 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 [2022-02-15 11:28:38,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2753 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11138 states. [2022-02-15 11:28:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11138 to 8984. [2022-02-15 11:28:38,885 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) [2022-02-15 11:28:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-15 11:28:38,901 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-15 11:28:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:38,901 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-15 11:28:38,901 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) [2022-02-15 11:28:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-15 11:28:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:38,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:38,912 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] [2022-02-15 11:28:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-02-15 11:28:38,913 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash -571654898, now seen corresponding path program 201 times [2022-02-15 11:28:38,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:38,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752736215] [2022-02-15 11:28:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:38,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:39,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:39,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752736215] [2022-02-15 11:28:39,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752736215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:39,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:39,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:39,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963024079] [2022-02-15 11:28:39,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:39,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:39,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:39,044 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) [2022-02-15 11:28:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:39,596 INFO L93 Difference]: Finished difference Result 11606 states and 31274 transitions. [2022-02-15 11:28:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:39,614 INFO L225 Difference]: With dead ends: 11606 [2022-02-15 11:28:39,614 INFO L226 Difference]: Without dead ends: 11121 [2022-02-15 11:28:39,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:39,614 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 277 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:39,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 3428 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:39,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-02-15 11:28:39,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 8996. [2022-02-15 11:28:39,729 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) [2022-02-15 11:28:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-15 11:28:39,746 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-15 11:28:39,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:39,746 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-15 11:28:39,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-15 11:28:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:39,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:39,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:39,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-02-15 11:28:39,757 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:39,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:39,757 INFO L85 PathProgramCache]: Analyzing trace with hash 109965756, now seen corresponding path program 202 times [2022-02-15 11:28:39,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:39,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633884611] [2022-02-15 11:28:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:39,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:39,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:39,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633884611] [2022-02-15 11:28:39,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633884611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:39,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:39,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:39,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360017372] [2022-02-15 11:28:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:39,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:39,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:39,871 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) [2022-02-15 11:28:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:40,352 INFO L93 Difference]: Finished difference Result 11564 states and 31163 transitions. [2022-02-15 11:28:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:40,352 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 [2022-02-15 11:28:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:40,369 INFO L225 Difference]: With dead ends: 11564 [2022-02-15 11:28:40,369 INFO L226 Difference]: Without dead ends: 11078 [2022-02-15 11:28:40,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:40,369 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 275 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3227 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 [2022-02-15 11:28:40,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3227 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-02-15 11:28:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 8992. [2022-02-15 11:28:40,485 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) [2022-02-15 11:28:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:40,502 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:40,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:40,502 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:40,502 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) [2022-02-15 11:28:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:40,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:40,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:40,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-02-15 11:28:40,513 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:40,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash 810653312, now seen corresponding path program 203 times [2022-02-15 11:28:40,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:40,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895851926] [2022-02-15 11:28:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:40,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:40,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:40,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895851926] [2022-02-15 11:28:40,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895851926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:40,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:40,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:40,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73055948] [2022-02-15 11:28:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:40,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:40,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:40,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:40,629 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) [2022-02-15 11:28:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:41,226 INFO L93 Difference]: Finished difference Result 11692 states and 31495 transitions. [2022-02-15 11:28:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:41,227 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:41,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:41,245 INFO L225 Difference]: With dead ends: 11692 [2022-02-15 11:28:41,246 INFO L226 Difference]: Without dead ends: 11166 [2022-02-15 11:28:41,246 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 [2022-02-15 11:28:41,246 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 344 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3436 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 [2022-02-15 11:28:41,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3436 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-15 11:28:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-02-15 11:28:41,372 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) [2022-02-15 11:28:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:41,389 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:41,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:41,389 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:41,390 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) [2022-02-15 11:28:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:41,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:41,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:41,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-02-15 11:28:41,402 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:41,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1888341340, now seen corresponding path program 204 times [2022-02-15 11:28:41,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:41,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019536927] [2022-02-15 11:28:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:41,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:41,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:41,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019536927] [2022-02-15 11:28:41,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019536927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:41,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:41,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:41,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582810288] [2022-02-15 11:28:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:41,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:41,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:41,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:41,522 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) [2022-02-15 11:28:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:42,166 INFO L93 Difference]: Finished difference Result 11694 states and 31487 transitions. [2022-02-15 11:28:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:28:42,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:42,183 INFO L225 Difference]: With dead ends: 11694 [2022-02-15 11:28:42,183 INFO L226 Difference]: Without dead ends: 11166 [2022-02-15 11:28:42,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:28:42,184 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 333 mSDsluCounter, 2965 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:42,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 3234 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-15 11:28:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8992. [2022-02-15 11:28:42,300 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) [2022-02-15 11:28:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:28:42,316 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:28:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:42,316 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:28:42,316 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) [2022-02-15 11:28:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:28:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:42,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:42,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:42,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-02-15 11:28:42,327 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:42,328 INFO L85 PathProgramCache]: Analyzing trace with hash -619691002, now seen corresponding path program 205 times [2022-02-15 11:28:42,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:42,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341998577] [2022-02-15 11:28:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:42,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:42,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:42,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341998577] [2022-02-15 11:28:42,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341998577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:42,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:42,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:42,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365213966] [2022-02-15 11:28:42,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:42,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:42,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:42,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:42,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:42,441 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) [2022-02-15 11:28:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:42,956 INFO L93 Difference]: Finished difference Result 11546 states and 31101 transitions. [2022-02-15 11:28:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:42,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:42,972 INFO L225 Difference]: With dead ends: 11546 [2022-02-15 11:28:42,972 INFO L226 Difference]: Without dead ends: 11061 [2022-02-15 11:28:42,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:28:42,973 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 276 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:42,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3448 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-02-15 11:28:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 8996. [2022-02-15 11:28:43,084 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) [2022-02-15 11:28:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-15 11:28:43,101 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-15 11:28:43,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:43,102 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-15 11:28:43,102 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) [2022-02-15 11:28:43,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-15 11:28:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:43,114 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:43,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:43,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-02-15 11:28:43,114 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:43,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash 61929652, now seen corresponding path program 206 times [2022-02-15 11:28:43,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:43,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228364847] [2022-02-15 11:28:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:43,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:43,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:43,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228364847] [2022-02-15 11:28:43,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228364847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:43,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:43,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:43,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596927121] [2022-02-15 11:28:43,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:43,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:43,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:43,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:43,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:43,230 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) [2022-02-15 11:28:43,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:43,701 INFO L93 Difference]: Finished difference Result 11464 states and 30880 transitions. [2022-02-15 11:28:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:43,718 INFO L225 Difference]: With dead ends: 11464 [2022-02-15 11:28:43,718 INFO L226 Difference]: Without dead ends: 10966 [2022-02-15 11:28:43,719 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 [2022-02-15 11:28:43,719 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 262 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3626 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 [2022-02-15 11:28:43,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3626 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:43,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-02-15 11:28:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 8980. [2022-02-15 11:28:43,834 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) [2022-02-15 11:28:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-15 11:28:43,850 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-15 11:28:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:43,850 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-15 11:28:43,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-15 11:28:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:43,863 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:43,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:43,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-02-15 11:28:43,863 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash 510289414, now seen corresponding path program 207 times [2022-02-15 11:28:43,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:43,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572103521] [2022-02-15 11:28:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:43,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:43,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:43,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572103521] [2022-02-15 11:28:43,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572103521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:43,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:43,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:43,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187797204] [2022-02-15 11:28:43,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:43,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:43,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:43,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:43,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:43,986 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) [2022-02-15 11:28:44,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:44,493 INFO L93 Difference]: Finished difference Result 11482 states and 30933 transitions. [2022-02-15 11:28:44,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:44,512 INFO L225 Difference]: With dead ends: 11482 [2022-02-15 11:28:44,512 INFO L226 Difference]: Without dead ends: 10997 [2022-02-15 11:28:44,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:44,513 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 273 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 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 [2022-02-15 11:28:44,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 3630 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10997 states. [2022-02-15 11:28:44,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10997 to 8996. [2022-02-15 11:28:44,627 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) [2022-02-15 11:28:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-15 11:28:44,643 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-15 11:28:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:44,643 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-15 11:28:44,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-15 11:28:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:44,655 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:44,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:44,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-02-15 11:28:44,656 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1191910068, now seen corresponding path program 208 times [2022-02-15 11:28:44,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:44,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996468400] [2022-02-15 11:28:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:44,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:44,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:44,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996468400] [2022-02-15 11:28:44,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996468400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:44,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:44,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:44,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546581223] [2022-02-15 11:28:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:44,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:44,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:44,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:44,768 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) [2022-02-15 11:28:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:45,270 INFO L93 Difference]: Finished difference Result 11440 states and 30822 transitions. [2022-02-15 11:28:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:45,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:45,286 INFO L225 Difference]: With dead ends: 11440 [2022-02-15 11:28:45,287 INFO L226 Difference]: Without dead ends: 10954 [2022-02-15 11:28:45,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:45,287 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 263 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3641 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 [2022-02-15 11:28:45,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3641 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-02-15 11:28:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-02-15 11:28:45,399 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) [2022-02-15 11:28:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:45,415 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:45,415 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:45,415 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) [2022-02-15 11:28:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:45,426 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:45,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:45,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-02-15 11:28:45,426 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:45,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:45,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1892597624, now seen corresponding path program 209 times [2022-02-15 11:28:45,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:45,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491037470] [2022-02-15 11:28:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:45,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:45,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:45,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491037470] [2022-02-15 11:28:45,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491037470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:45,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:45,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:45,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044105156] [2022-02-15 11:28:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:45,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:45,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:45,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:45,542 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) [2022-02-15 11:28:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:46,111 INFO L93 Difference]: Finished difference Result 11568 states and 31154 transitions. [2022-02-15 11:28:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:28:46,112 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 [2022-02-15 11:28:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:46,129 INFO L225 Difference]: With dead ends: 11568 [2022-02-15 11:28:46,129 INFO L226 Difference]: Without dead ends: 11042 [2022-02-15 11:28:46,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:28:46,130 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 347 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2785 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 [2022-02-15 11:28:46,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 2785 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:46,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-15 11:28:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-02-15 11:28:46,249 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) [2022-02-15 11:28:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:46,266 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:46,267 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:46,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:46,278 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:46,278 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] [2022-02-15 11:28:46,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-02-15 11:28:46,278 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:46,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:46,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1324681644, now seen corresponding path program 210 times [2022-02-15 11:28:46,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:46,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232984740] [2022-02-15 11:28:46,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:46,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:46,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:46,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232984740] [2022-02-15 11:28:46,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232984740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:46,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:46,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:46,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350083269] [2022-02-15 11:28:46,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:46,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:46,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:46,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:46,402 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) [2022-02-15 11:28:47,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:47,075 INFO L93 Difference]: Finished difference Result 11650 states and 31366 transitions. [2022-02-15 11:28:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:47,075 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 [2022-02-15 11:28:47,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:47,094 INFO L225 Difference]: With dead ends: 11650 [2022-02-15 11:28:47,094 INFO L226 Difference]: Without dead ends: 11122 [2022-02-15 11:28:47,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:47,095 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 332 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 3240 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 [2022-02-15 11:28:47,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 3240 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11122 states. [2022-02-15 11:28:47,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11122 to 8992. [2022-02-15 11:28:47,267 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) [2022-02-15 11:28:47,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:28:47,284 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:28:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:47,284 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:28:47,284 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) [2022-02-15 11:28:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:28:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:47,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:47,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:47,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-02-15 11:28:47,295 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:47,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash 462253310, now seen corresponding path program 211 times [2022-02-15 11:28:47,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:47,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18437424] [2022-02-15 11:28:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:47,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:47,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:47,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18437424] [2022-02-15 11:28:47,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18437424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:47,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:47,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:47,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837242190] [2022-02-15 11:28:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:47,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:47,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:47,406 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) [2022-02-15 11:28:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:47,896 INFO L93 Difference]: Finished difference Result 11486 states and 30936 transitions. [2022-02-15 11:28:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:47,913 INFO L225 Difference]: With dead ends: 11486 [2022-02-15 11:28:47,913 INFO L226 Difference]: Without dead ends: 11001 [2022-02-15 11:28:47,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:28:47,914 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3251 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 [2022-02-15 11:28:47,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3251 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-02-15 11:28:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 8996. [2022-02-15 11:28:48,035 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) [2022-02-15 11:28:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-15 11:28:48,052 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-15 11:28:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:48,052 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-15 11:28:48,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:48,053 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-15 11:28:48,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:48,064 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:48,064 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] [2022-02-15 11:28:48,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-02-15 11:28:48,064 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:48,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873964, now seen corresponding path program 212 times [2022-02-15 11:28:48,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:48,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296640960] [2022-02-15 11:28:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:48,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:48,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:48,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296640960] [2022-02-15 11:28:48,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296640960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:48,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:48,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:48,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171639542] [2022-02-15 11:28:48,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:48,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:48,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:48,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:48,175 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) [2022-02-15 11:28:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:48,637 INFO L93 Difference]: Finished difference Result 11420 states and 30759 transitions. [2022-02-15 11:28:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:48,638 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 [2022-02-15 11:28:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:48,654 INFO L225 Difference]: With dead ends: 11420 [2022-02-15 11:28:48,654 INFO L226 Difference]: Without dead ends: 10926 [2022-02-15 11:28:48,655 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 [2022-02-15 11:28:48,655 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:48,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 3634 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:48,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-02-15 11:28:48,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 8984. [2022-02-15 11:28:48,775 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) [2022-02-15 11:28:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:48,792 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:48,792 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:48,792 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) [2022-02-15 11:28:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:48,802 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:48,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:48,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-02-15 11:28:48,803 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1466807816, now seen corresponding path program 213 times [2022-02-15 11:28:48,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:48,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914199218] [2022-02-15 11:28:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:48,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:48,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:48,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914199218] [2022-02-15 11:28:48,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914199218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:48,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:48,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:48,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485273228] [2022-02-15 11:28:48,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:48,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:48,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:48,914 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) [2022-02-15 11:28:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:49,578 INFO L93 Difference]: Finished difference Result 11535 states and 31031 transitions. [2022-02-15 11:28:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 11:28:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:49,596 INFO L225 Difference]: With dead ends: 11535 [2022-02-15 11:28:49,596 INFO L226 Difference]: Without dead ends: 10964 [2022-02-15 11:28:49,597 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 [2022-02-15 11:28:49,597 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 383 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3740 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 [2022-02-15 11:28:49,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 3740 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-02-15 11:28:49,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8988. [2022-02-15 11:28:49,717 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) [2022-02-15 11:28:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:28:49,734 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:28:49,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:49,734 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:28:49,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:49,735 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:28:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:49,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:49,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:49,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-02-15 11:28:49,746 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1038597026, now seen corresponding path program 214 times [2022-02-15 11:28:49,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:49,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011076638] [2022-02-15 11:28:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:49,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:49,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:49,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011076638] [2022-02-15 11:28:49,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011076638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:49,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:49,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:49,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921288605] [2022-02-15 11:28:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:49,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:49,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:49,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:49,855 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) [2022-02-15 11:28:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:50,470 INFO L93 Difference]: Finished difference Result 11546 states and 31076 transitions. [2022-02-15 11:28:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:50,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:50,487 INFO L225 Difference]: With dead ends: 11546 [2022-02-15 11:28:50,487 INFO L226 Difference]: Without dead ends: 11018 [2022-02-15 11:28:50,488 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 [2022-02-15 11:28:50,488 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:28:50,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3649 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:28:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11018 states. [2022-02-15 11:28:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11018 to 8992. [2022-02-15 11:28:50,604 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) [2022-02-15 11:28:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:28:50,621 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:28:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:50,621 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:28:50,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:28:50,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:50,632 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:50,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:50,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-02-15 11:28:50,632 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:50,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash 748337928, now seen corresponding path program 215 times [2022-02-15 11:28:50,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:50,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086872399] [2022-02-15 11:28:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:50,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:50,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:50,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086872399] [2022-02-15 11:28:50,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086872399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:50,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:50,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:50,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813935294] [2022-02-15 11:28:50,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:50,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:50,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:50,741 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) [2022-02-15 11:28:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:51,223 INFO L93 Difference]: Finished difference Result 11382 states and 30646 transitions. [2022-02-15 11:28:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:51,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:51,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:51,240 INFO L225 Difference]: With dead ends: 11382 [2022-02-15 11:28:51,240 INFO L226 Difference]: Without dead ends: 10897 [2022-02-15 11:28:51,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:28:51,241 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 272 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3048 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 [2022-02-15 11:28:51,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3048 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:51,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-02-15 11:28:51,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 8996. [2022-02-15 11:28:51,363 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) [2022-02-15 11:28:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-02-15 11:28:51,379 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-02-15 11:28:51,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:51,379 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-02-15 11:28:51,379 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) [2022-02-15 11:28:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-02-15 11:28:51,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:51,390 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:51,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:51,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-02-15 11:28:51,390 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1429958582, now seen corresponding path program 216 times [2022-02-15 11:28:51,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:51,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751582] [2022-02-15 11:28:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:51,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:51,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:51,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751582] [2022-02-15 11:28:51,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:51,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:51,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:51,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593705015] [2022-02-15 11:28:51,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:51,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:51,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:51,508 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) [2022-02-15 11:28:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:51,915 INFO L93 Difference]: Finished difference Result 11316 states and 30469 transitions. [2022-02-15 11:28:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:51,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:51,932 INFO L225 Difference]: With dead ends: 11316 [2022-02-15 11:28:51,933 INFO L226 Difference]: Without dead ends: 10814 [2022-02-15 11:28:51,933 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 [2022-02-15 11:28:51,933 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 [2022-02-15 11:28:51,933 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] [2022-02-15 11:28:51,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-02-15 11:28:52,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 8976. [2022-02-15 11:28:52,053 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) [2022-02-15 11:28:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-15 11:28:52,071 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-15 11:28:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:52,071 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-15 11:28:52,071 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) [2022-02-15 11:28:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-15 11:28:52,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:52,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:52,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:52,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-02-15 11:28:52,082 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash 417121160, now seen corresponding path program 217 times [2022-02-15 11:28:52,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:52,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060453601] [2022-02-15 11:28:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:52,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:52,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:52,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060453601] [2022-02-15 11:28:52,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060453601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:52,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:52,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:52,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551695900] [2022-02-15 11:28:52,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:52,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:52,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:52,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:52,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:52,199 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) [2022-02-15 11:28:52,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:52,674 INFO L93 Difference]: Finished difference Result 11594 states and 31241 transitions. [2022-02-15 11:28:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:28:52,674 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 [2022-02-15 11:28:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:52,691 INFO L225 Difference]: With dead ends: 11594 [2022-02-15 11:28:52,691 INFO L226 Difference]: Without dead ends: 11109 [2022-02-15 11:28:52,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:28:52,692 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 306 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3359 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 [2022-02-15 11:28:52,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3359 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-02-15 11:28:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 8996. [2022-02-15 11:28:52,818 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) [2022-02-15 11:28:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-15 11:28:52,836 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-15 11:28:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:52,836 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-15 11:28:52,836 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) [2022-02-15 11:28:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-15 11:28:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:52,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:52,847 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] [2022-02-15 11:28:52,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-02-15 11:28:52,848 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1098741814, now seen corresponding path program 218 times [2022-02-15 11:28:52,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:52,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261830018] [2022-02-15 11:28:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:52,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:52,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:52,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261830018] [2022-02-15 11:28:52,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261830018] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:52,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:52,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:52,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477062840] [2022-02-15 11:28:52,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:52,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:52,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:52,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:52,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:52,968 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) [2022-02-15 11:28:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:53,457 INFO L93 Difference]: Finished difference Result 11560 states and 31152 transitions. [2022-02-15 11:28:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:53,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:53,474 INFO L225 Difference]: With dead ends: 11560 [2022-02-15 11:28:53,474 INFO L226 Difference]: Without dead ends: 11074 [2022-02-15 11:28:53,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:53,474 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 [2022-02-15 11:28:53,474 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] [2022-02-15 11:28:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-02-15 11:28:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 8992. [2022-02-15 11:28:53,592 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) [2022-02-15 11:28:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:28:53,608 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:28:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:53,608 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:28:53,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:28:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:53,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:53,619 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] [2022-02-15 11:28:53,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-02-15 11:28:53,619 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:53,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1799429370, now seen corresponding path program 219 times [2022-02-15 11:28:53,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:53,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138602711] [2022-02-15 11:28:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:53,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:53,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:53,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138602711] [2022-02-15 11:28:53,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138602711] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:53,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:53,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:53,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161084498] [2022-02-15 11:28:53,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:53,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:53,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:53,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:53,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:53,742 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) [2022-02-15 11:28:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:54,359 INFO L93 Difference]: Finished difference Result 11596 states and 31247 transitions. [2022-02-15 11:28:54,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:28:54,360 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:54,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:54,374 INFO L225 Difference]: With dead ends: 11596 [2022-02-15 11:28:54,374 INFO L226 Difference]: Without dead ends: 11070 [2022-02-15 11:28:54,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:28:54,375 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 343 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3401 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 [2022-02-15 11:28:54,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 3401 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2022-02-15 11:28:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 8988. [2022-02-15 11:28:54,480 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) [2022-02-15 11:28:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:28:54,495 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:28:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:54,496 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:28:54,496 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) [2022-02-15 11:28:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:28:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:54,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:54,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:54,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-02-15 11:28:54,507 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:54,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash -344647094, now seen corresponding path program 220 times [2022-02-15 11:28:54,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:54,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443119815] [2022-02-15 11:28:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:54,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:54,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:54,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443119815] [2022-02-15 11:28:54,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443119815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:54,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:54,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:54,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733218701] [2022-02-15 11:28:54,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:54,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:54,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:54,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:54,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:54,629 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) [2022-02-15 11:28:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:55,378 INFO L93 Difference]: Finished difference Result 11824 states and 31846 transitions. [2022-02-15 11:28:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:28:55,379 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 [2022-02-15 11:28:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:55,396 INFO L225 Difference]: With dead ends: 11824 [2022-02-15 11:28:55,396 INFO L226 Difference]: Without dead ends: 11258 [2022-02-15 11:28:55,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:28:55,397 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 438 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 3226 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 [2022-02-15 11:28:55,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 3226 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:55,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-02-15 11:28:55,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8984. [2022-02-15 11:28:55,516 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) [2022-02-15 11:28:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:28:55,531 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:28:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:55,532 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:28:55,532 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) [2022-02-15 11:28:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:28:55,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:55,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:55,542 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] [2022-02-15 11:28:55,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-02-15 11:28:55,543 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1447765390, now seen corresponding path program 221 times [2022-02-15 11:28:55,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:55,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580627311] [2022-02-15 11:28:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:55,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:55,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:55,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580627311] [2022-02-15 11:28:55,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580627311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:55,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:55,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:55,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283643698] [2022-02-15 11:28:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:55,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:55,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:55,659 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) [2022-02-15 11:28:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:56,156 INFO L93 Difference]: Finished difference Result 11570 states and 31171 transitions. [2022-02-15 11:28:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:28:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:56,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:56,173 INFO L225 Difference]: With dead ends: 11570 [2022-02-15 11:28:56,173 INFO L226 Difference]: Without dead ends: 11085 [2022-02-15 11:28:56,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:28:56,174 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 307 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 3368 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 [2022-02-15 11:28:56,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 3368 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-02-15 11:28:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 8996. [2022-02-15 11:28:56,294 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) [2022-02-15 11:28:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-15 11:28:56,385 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-15 11:28:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:56,385 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-15 11:28:56,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:28:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-15 11:28:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:56,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:56,396 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] [2022-02-15 11:28:56,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-02-15 11:28:56,397 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:56,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386044, now seen corresponding path program 222 times [2022-02-15 11:28:56,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:56,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918513676] [2022-02-15 11:28:56,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:56,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:56,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:56,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918513676] [2022-02-15 11:28:56,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918513676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:56,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:56,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:56,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126408485] [2022-02-15 11:28:56,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:56,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:56,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:56,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:56,511 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) [2022-02-15 11:28:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:56,990 INFO L93 Difference]: Finished difference Result 11528 states and 31060 transitions. [2022-02-15 11:28:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:56,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:57,006 INFO L225 Difference]: With dead ends: 11528 [2022-02-15 11:28:57,006 INFO L226 Difference]: Without dead ends: 11042 [2022-02-15 11:28:57,007 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 [2022-02-15 11:28:57,007 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 283 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3584 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 [2022-02-15 11:28:57,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3584 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:57,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-15 11:28:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8992. [2022-02-15 11:28:57,124 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) [2022-02-15 11:28:57,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:28:57,139 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:28:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:57,139 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:28:57,139 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) [2022-02-15 11:28:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:28:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:57,150 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:57,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:57,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-02-15 11:28:57,150 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1464893696, now seen corresponding path program 223 times [2022-02-15 11:28:57,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:57,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968102561] [2022-02-15 11:28:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:57,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:57,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:57,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968102561] [2022-02-15 11:28:57,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968102561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:57,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:57,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:57,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456911441] [2022-02-15 11:28:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:57,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:57,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:57,270 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) [2022-02-15 11:28:57,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:57,852 INFO L93 Difference]: Finished difference Result 11696 states and 31502 transitions. [2022-02-15 11:28:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:28:57,853 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:28:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:57,870 INFO L225 Difference]: With dead ends: 11696 [2022-02-15 11:28:57,870 INFO L226 Difference]: Without dead ends: 11170 [2022-02-15 11:28:57,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:28:57,870 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 376 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 3170 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 [2022-02-15 11:28:57,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 3170 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:57,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2022-02-15 11:28:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8988. [2022-02-15 11:28:57,986 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) [2022-02-15 11:28:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:28:58,003 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:28:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:58,003 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:28:58,003 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) [2022-02-15 11:28:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:28:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:58,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:58,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:58,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-02-15 11:28:58,014 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash -387205668, now seen corresponding path program 224 times [2022-02-15 11:28:58,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:58,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739260842] [2022-02-15 11:28:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:58,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:58,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:58,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739260842] [2022-02-15 11:28:58,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739260842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:58,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:58,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:58,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540684445] [2022-02-15 11:28:58,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:58,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:58,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:58,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:58,137 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) [2022-02-15 11:28:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:58,735 INFO L93 Difference]: Finished difference Result 11594 states and 31208 transitions. [2022-02-15 11:28:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:28:58,736 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 [2022-02-15 11:28:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:58,752 INFO L225 Difference]: With dead ends: 11594 [2022-02-15 11:28:58,752 INFO L226 Difference]: Without dead ends: 11066 [2022-02-15 11:28:58,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:28:58,753 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 360 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3044 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 [2022-02-15 11:28:58,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3044 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:28:58,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-02-15 11:28:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8992. [2022-02-15 11:28:58,860 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) [2022-02-15 11:28:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-15 11:28:58,875 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-15 11:28:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:58,875 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-15 11:28:58,875 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) [2022-02-15 11:28:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-15 11:28:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:58,885 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:58,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:28:58,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-02-15 11:28:58,886 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:58,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1399729286, now seen corresponding path program 225 times [2022-02-15 11:28:58,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:58,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998196807] [2022-02-15 11:28:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:58,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:59,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:59,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998196807] [2022-02-15 11:28:59,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998196807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:59,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:59,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:59,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302137436] [2022-02-15 11:28:59,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:59,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:59,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:59,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:59,001 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) [2022-02-15 11:28:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:28:59,503 INFO L93 Difference]: Finished difference Result 11510 states and 30998 transitions. [2022-02-15 11:28:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:28:59,503 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 [2022-02-15 11:28:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:28:59,519 INFO L225 Difference]: With dead ends: 11510 [2022-02-15 11:28:59,519 INFO L226 Difference]: Without dead ends: 11025 [2022-02-15 11:28:59,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:28:59,519 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 [2022-02-15 11:28:59,519 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] [2022-02-15 11:28:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-02-15 11:28:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 8996. [2022-02-15 11:28:59,641 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) [2022-02-15 11:28:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-02-15 11:28:59,658 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-02-15 11:28:59,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:28:59,658 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-02-15 11:28:59,658 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) [2022-02-15 11:28:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-02-15 11:28:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:28:59,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:28:59,670 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] [2022-02-15 11:28:59,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-02-15 11:28:59,670 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:28:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:28:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2081349940, now seen corresponding path program 226 times [2022-02-15 11:28:59,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:28:59,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004921822] [2022-02-15 11:28:59,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:28:59,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:28:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:28:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:28:59,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:28:59,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004921822] [2022-02-15 11:28:59,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004921822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:28:59,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:28:59,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:28:59,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982858149] [2022-02-15 11:28:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:28:59,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:28:59,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:28:59,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:28:59,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:28:59,786 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) [2022-02-15 11:29:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:00,254 INFO L93 Difference]: Finished difference Result 11460 states and 30865 transitions. [2022-02-15 11:29:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:00,255 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 [2022-02-15 11:29:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:00,272 INFO L225 Difference]: With dead ends: 11460 [2022-02-15 11:29:00,272 INFO L226 Difference]: Without dead ends: 10962 [2022-02-15 11:29:00,273 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 [2022-02-15 11:29:00,273 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 [2022-02-15 11:29:00,273 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] [2022-02-15 11:29:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2022-02-15 11:29:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 8980. [2022-02-15 11:29:00,400 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) [2022-02-15 11:29:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-15 11:29:00,416 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-15 11:29:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:00,416 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-15 11:29:00,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:00,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-15 11:29:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:00,427 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:00,427 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] [2022-02-15 11:29:00,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-02-15 11:29:00,427 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1895765318, now seen corresponding path program 227 times [2022-02-15 11:29:00,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:00,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725129448] [2022-02-15 11:29:00,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:00,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:00,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:00,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725129448] [2022-02-15 11:29:00,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725129448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:00,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:00,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:00,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793023278] [2022-02-15 11:29:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:00,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:00,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:00,542 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) [2022-02-15 11:29:01,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:01,012 INFO L93 Difference]: Finished difference Result 11450 states and 30841 transitions. [2022-02-15 11:29:01,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:29:01,013 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 [2022-02-15 11:29:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:01,030 INFO L225 Difference]: With dead ends: 11450 [2022-02-15 11:29:01,030 INFO L226 Difference]: Without dead ends: 10965 [2022-02-15 11:29:01,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:29:01,030 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 284 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3346 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 [2022-02-15 11:29:01,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3346 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:01,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-02-15 11:29:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 8996. [2022-02-15 11:29:01,153 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) [2022-02-15 11:29:01,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-15 11:29:01,170 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-15 11:29:01,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:01,170 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-15 11:29:01,170 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) [2022-02-15 11:29:01,170 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-15 11:29:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:01,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:01,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:01,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-02-15 11:29:01,182 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:01,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1717581324, now seen corresponding path program 228 times [2022-02-15 11:29:01,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:01,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196106379] [2022-02-15 11:29:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:01,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:01,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:01,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196106379] [2022-02-15 11:29:01,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196106379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:01,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:01,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:01,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727585449] [2022-02-15 11:29:01,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:01,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:01,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:01,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:01,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:01,299 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) [2022-02-15 11:29:01,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:01,777 INFO L93 Difference]: Finished difference Result 11424 states and 30774 transitions. [2022-02-15 11:29:01,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:01,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:01,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:01,795 INFO L225 Difference]: With dead ends: 11424 [2022-02-15 11:29:01,795 INFO L226 Difference]: Without dead ends: 10938 [2022-02-15 11:29:01,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:01,795 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 297 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:01,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 3341 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-02-15 11:29:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 8992. [2022-02-15 11:29:01,910 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) [2022-02-15 11:29:01,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:29:01,925 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:29:01,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:01,925 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:29:01,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:29:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:01,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:01,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:01,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-02-15 11:29:01,935 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893768, now seen corresponding path program 229 times [2022-02-15 11:29:01,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:01,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600582462] [2022-02-15 11:29:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:01,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:02,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:02,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600582462] [2022-02-15 11:29:02,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600582462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:02,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:02,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:02,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371693819] [2022-02-15 11:29:02,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:02,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:02,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:02,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:02,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:02,050 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) [2022-02-15 11:29:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:02,613 INFO L93 Difference]: Finished difference Result 11460 states and 30869 transitions. [2022-02-15 11:29:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:02,613 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 [2022-02-15 11:29:02,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:02,630 INFO L225 Difference]: With dead ends: 11460 [2022-02-15 11:29:02,630 INFO L226 Difference]: Without dead ends: 10934 [2022-02-15 11:29:02,631 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 [2022-02-15 11:29:02,631 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 359 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 3426 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 [2022-02-15 11:29:02,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 3426 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:02,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-02-15 11:29:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8988. [2022-02-15 11:29:02,755 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) [2022-02-15 11:29:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:29:02,772 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:29:02,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:02,772 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:29:02,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:29:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:02,783 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:02,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:02,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-02-15 11:29:02,783 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1133997064, now seen corresponding path program 230 times [2022-02-15 11:29:02,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:02,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908786838] [2022-02-15 11:29:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:02,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:02,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:02,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908786838] [2022-02-15 11:29:02,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908786838] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:02,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:02,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:02,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712200705] [2022-02-15 11:29:02,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:02,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:02,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:02,913 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) [2022-02-15 11:29:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:03,673 INFO L93 Difference]: Finished difference Result 11496 states and 30964 transitions. [2022-02-15 11:29:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:03,674 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 [2022-02-15 11:29:03,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:03,691 INFO L225 Difference]: With dead ends: 11496 [2022-02-15 11:29:03,691 INFO L226 Difference]: Without dead ends: 10930 [2022-02-15 11:29:03,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:29:03,692 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 404 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 3720 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 [2022-02-15 11:29:03,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 3720 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10930 states. [2022-02-15 11:29:03,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10930 to 8984. [2022-02-15 11:29:03,813 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) [2022-02-15 11:29:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-15 11:29:03,831 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-15 11:29:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:03,831 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-15 11:29:03,831 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) [2022-02-15 11:29:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-15 11:29:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:03,842 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:03,842 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] [2022-02-15 11:29:03,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-02-15 11:29:03,843 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:03,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:03,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188412, now seen corresponding path program 231 times [2022-02-15 11:29:03,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:03,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276104007] [2022-02-15 11:29:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:03,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:03,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:03,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276104007] [2022-02-15 11:29:03,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276104007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:03,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:03,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:03,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000825326] [2022-02-15 11:29:03,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:03,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:03,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:03,965 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) [2022-02-15 11:29:04,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:04,830 INFO L93 Difference]: Finished difference Result 11424 states and 30762 transitions. [2022-02-15 11:29:04,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 11:29:04,830 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:04,847 INFO L225 Difference]: With dead ends: 11424 [2022-02-15 11:29:04,847 INFO L226 Difference]: Without dead ends: 10810 [2022-02-15 11:29:04,847 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 [2022-02-15 11:29:04,848 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 434 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 3744 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 [2022-02-15 11:29:04,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 3744 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-02-15 11:29:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 8972. [2022-02-15 11:29:04,964 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) [2022-02-15 11:29:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-02-15 11:29:04,980 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-02-15 11:29:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:04,980 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-02-15 11:29:04,980 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) [2022-02-15 11:29:04,980 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-02-15 11:29:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:04,990 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:04,990 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:04,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-02-15 11:29:04,990 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1433525632, now seen corresponding path program 232 times [2022-02-15 11:29:04,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:04,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597586905] [2022-02-15 11:29:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:04,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:05,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:05,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597586905] [2022-02-15 11:29:05,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597586905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:05,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:05,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:05,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782728661] [2022-02-15 11:29:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:05,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:05,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:05,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:05,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:05,102 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) [2022-02-15 11:29:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:05,578 INFO L93 Difference]: Finished difference Result 11378 states and 30647 transitions. [2022-02-15 11:29:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:29:05,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:05,596 INFO L225 Difference]: With dead ends: 11378 [2022-02-15 11:29:05,596 INFO L226 Difference]: Without dead ends: 10893 [2022-02-15 11:29:05,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:29:05,596 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 369 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:05,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 3344 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-02-15 11:29:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9000. [2022-02-15 11:29:05,771 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) [2022-02-15 11:29:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24305 transitions. [2022-02-15 11:29:05,787 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24305 transitions. Word has length 109 [2022-02-15 11:29:05,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:05,787 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24305 transitions. [2022-02-15 11:29:05,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24305 transitions. [2022-02-15 11:29:05,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:05,798 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:05,798 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] [2022-02-15 11:29:05,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-02-15 11:29:05,798 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:05,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:05,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2115146286, now seen corresponding path program 233 times [2022-02-15 11:29:05,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:05,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896501166] [2022-02-15 11:29:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:05,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:05,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:05,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896501166] [2022-02-15 11:29:05,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896501166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:05,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:05,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:05,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515570882] [2022-02-15 11:29:05,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:05,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:05,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:05,909 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) [2022-02-15 11:29:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:06,385 INFO L93 Difference]: Finished difference Result 11344 states and 30558 transitions. [2022-02-15 11:29:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:06,401 INFO L225 Difference]: With dead ends: 11344 [2022-02-15 11:29:06,401 INFO L226 Difference]: Without dead ends: 10858 [2022-02-15 11:29:06,402 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 [2022-02-15 11:29:06,402 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 [2022-02-15 11:29:06,402 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] [2022-02-15 11:29:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-02-15 11:29:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 8996. [2022-02-15 11:29:06,519 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) [2022-02-15 11:29:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-15 11:29:06,536 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-15 11:29:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:06,537 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-15 11:29:06,537 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) [2022-02-15 11:29:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-15 11:29:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:06,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:06,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:06,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-02-15 11:29:06,549 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1479133454, now seen corresponding path program 234 times [2022-02-15 11:29:06,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:06,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888486375] [2022-02-15 11:29:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:06,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:06,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:06,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888486375] [2022-02-15 11:29:06,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888486375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:06,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:06,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:06,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311694469] [2022-02-15 11:29:06,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:06,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:06,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:06,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:06,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:06,673 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) [2022-02-15 11:29:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:07,277 INFO L93 Difference]: Finished difference Result 11380 states and 30653 transitions. [2022-02-15 11:29:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:07,278 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 [2022-02-15 11:29:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:07,294 INFO L225 Difference]: With dead ends: 11380 [2022-02-15 11:29:07,294 INFO L226 Difference]: Without dead ends: 10854 [2022-02-15 11:29:07,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:29:07,295 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 418 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 3691 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 [2022-02-15 11:29:07,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 3691 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-02-15 11:29:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8992. [2022-02-15 11:29:07,412 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) [2022-02-15 11:29:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-15 11:29:07,429 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-15 11:29:07,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:07,429 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-15 11:29:07,429 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) [2022-02-15 11:29:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-15 11:29:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:07,440 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:07,440 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] [2022-02-15 11:29:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-02-15 11:29:07,440 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 671757378, now seen corresponding path program 235 times [2022-02-15 11:29:07,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:07,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623955672] [2022-02-15 11:29:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:07,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:07,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623955672] [2022-02-15 11:29:07,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623955672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:07,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:07,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:07,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496649890] [2022-02-15 11:29:07,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:07,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:07,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:07,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:07,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:07,561 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) [2022-02-15 11:29:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:08,268 INFO L93 Difference]: Finished difference Result 11608 states and 31252 transitions. [2022-02-15 11:29:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:29:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:08,286 INFO L225 Difference]: With dead ends: 11608 [2022-02-15 11:29:08,286 INFO L226 Difference]: Without dead ends: 11042 [2022-02-15 11:29:08,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:29:08,287 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 520 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3162 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 [2022-02-15 11:29:08,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3162 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-15 11:29:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-02-15 11:29:08,419 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) [2022-02-15 11:29:08,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-15 11:29:08,437 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-15 11:29:08,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:08,437 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-15 11:29:08,437 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) [2022-02-15 11:29:08,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-15 11:29:08,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:08,449 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:08,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:08,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-02-15 11:29:08,449 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:08,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:08,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1830797434, now seen corresponding path program 236 times [2022-02-15 11:29:08,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:08,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965336962] [2022-02-15 11:29:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:08,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:08,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:08,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965336962] [2022-02-15 11:29:08,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965336962] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:08,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:08,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:08,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477202322] [2022-02-15 11:29:08,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:08,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:08,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:08,565 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) [2022-02-15 11:29:09,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:09,038 INFO L93 Difference]: Finished difference Result 11354 states and 30577 transitions. [2022-02-15 11:29:09,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:09,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:09,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:09,053 INFO L225 Difference]: With dead ends: 11354 [2022-02-15 11:29:09,053 INFO L226 Difference]: Without dead ends: 10869 [2022-02-15 11:29:09,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:09,054 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 370 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:09,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 3124 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-02-15 11:29:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 9000. [2022-02-15 11:29:09,155 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) [2022-02-15 11:29:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-15 11:29:09,171 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-15 11:29:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:09,171 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-15 11:29:09,171 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) [2022-02-15 11:29:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-15 11:29:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:09,181 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:09,181 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] [2022-02-15 11:29:09,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-02-15 11:29:09,181 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:09,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:09,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1149176780, now seen corresponding path program 237 times [2022-02-15 11:29:09,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:09,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029042178] [2022-02-15 11:29:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:09,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:09,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:09,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029042178] [2022-02-15 11:29:09,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029042178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:09,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:09,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:09,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056554500] [2022-02-15 11:29:09,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:09,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:09,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:09,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:09,290 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) [2022-02-15 11:29:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:09,755 INFO L93 Difference]: Finished difference Result 11312 states and 30466 transitions. [2022-02-15 11:29:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:09,756 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:09,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:09,772 INFO L225 Difference]: With dead ends: 11312 [2022-02-15 11:29:09,772 INFO L226 Difference]: Without dead ends: 10826 [2022-02-15 11:29:09,772 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 [2022-02-15 11:29:09,772 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 356 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 3605 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 [2022-02-15 11:29:09,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 3605 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-02-15 11:29:09,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 8996. [2022-02-15 11:29:09,887 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) [2022-02-15 11:29:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-15 11:29:09,903 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-15 11:29:09,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:09,903 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-15 11:29:09,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-15 11:29:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:09,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:09,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:09,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-02-15 11:29:09,914 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash -448489224, now seen corresponding path program 238 times [2022-02-15 11:29:09,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:09,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062788853] [2022-02-15 11:29:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:09,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:10,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:10,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062788853] [2022-02-15 11:29:10,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062788853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:10,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:10,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:10,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043620301] [2022-02-15 11:29:10,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:10,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:10,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:10,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:10,048 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) [2022-02-15 11:29:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:10,656 INFO L93 Difference]: Finished difference Result 11480 states and 30908 transitions. [2022-02-15 11:29:10,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:29:10,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:10,674 INFO L225 Difference]: With dead ends: 11480 [2022-02-15 11:29:10,674 INFO L226 Difference]: Without dead ends: 10954 [2022-02-15 11:29:10,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:29:10,675 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 452 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2561 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 [2022-02-15 11:29:10,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2561 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:10,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-02-15 11:29:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-02-15 11:29:10,799 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) [2022-02-15 11:29:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:29:10,815 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:29:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:10,816 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:29:10,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:29:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:10,827 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:10,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:10,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-02-15 11:29:10,827 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 629198804, now seen corresponding path program 239 times [2022-02-15 11:29:10,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:10,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093264989] [2022-02-15 11:29:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:10,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:10,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:10,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093264989] [2022-02-15 11:29:10,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093264989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:10,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:10,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:10,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155630363] [2022-02-15 11:29:10,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:10,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:10,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:10,955 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) [2022-02-15 11:29:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:11,493 INFO L93 Difference]: Finished difference Result 11378 states and 30614 transitions. [2022-02-15 11:29:11,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 11:29:11,493 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:11,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:11,511 INFO L225 Difference]: With dead ends: 11378 [2022-02-15 11:29:11,511 INFO L226 Difference]: Without dead ends: 10850 [2022-02-15 11:29:11,512 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 [2022-02-15 11:29:11,512 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 418 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 3145 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 [2022-02-15 11:29:11,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 3145 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2022-02-15 11:29:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 8996. [2022-02-15 11:29:11,638 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) [2022-02-15 11:29:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-15 11:29:11,655 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-15 11:29:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:11,655 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-15 11:29:11,655 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) [2022-02-15 11:29:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-15 11:29:11,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:11,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:11,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:11,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-02-15 11:29:11,666 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:11,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:11,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1878833538, now seen corresponding path program 240 times [2022-02-15 11:29:11,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:11,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55193760] [2022-02-15 11:29:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:11,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:11,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:11,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55193760] [2022-02-15 11:29:11,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55193760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:11,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:11,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:11,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65389745] [2022-02-15 11:29:11,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:11,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:11,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:11,789 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) [2022-02-15 11:29:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:12,266 INFO L93 Difference]: Finished difference Result 11294 states and 30404 transitions. [2022-02-15 11:29:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:12,266 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:12,284 INFO L225 Difference]: With dead ends: 11294 [2022-02-15 11:29:12,284 INFO L226 Difference]: Without dead ends: 10809 [2022-02-15 11:29:12,284 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 [2022-02-15 11:29:12,285 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 417 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:12,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2473 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-02-15 11:29:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9000. [2022-02-15 11:29:12,392 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) [2022-02-15 11:29:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24293 transitions. [2022-02-15 11:29:12,408 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24293 transitions. Word has length 109 [2022-02-15 11:29:12,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:12,408 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24293 transitions. [2022-02-15 11:29:12,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24293 transitions. [2022-02-15 11:29:12,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:12,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:12,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:12,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-02-15 11:29:12,419 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:12,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:12,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1197212884, now seen corresponding path program 241 times [2022-02-15 11:29:12,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:12,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116094791] [2022-02-15 11:29:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:12,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:12,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:12,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116094791] [2022-02-15 11:29:12,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116094791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:12,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:12,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:12,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435030822] [2022-02-15 11:29:12,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:12,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:12,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:12,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:12,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:12,528 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) [2022-02-15 11:29:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:12,982 INFO L93 Difference]: Finished difference Result 11244 states and 30271 transitions. [2022-02-15 11:29:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:12,982 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 [2022-02-15 11:29:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:13,000 INFO L225 Difference]: With dead ends: 11244 [2022-02-15 11:29:13,000 INFO L226 Difference]: Without dead ends: 10746 [2022-02-15 11:29:13,000 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 [2022-02-15 11:29:13,000 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 354 mSDsluCounter, 3548 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3832 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 [2022-02-15 11:29:13,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 3832 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-02-15 11:29:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8984. [2022-02-15 11:29:13,127 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) [2022-02-15 11:29:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-15 11:29:13,145 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-15 11:29:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:13,145 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-15 11:29:13,145 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) [2022-02-15 11:29:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-15 11:29:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:13,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:13,156 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] [2022-02-15 11:29:13,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-02-15 11:29:13,156 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1382797506, now seen corresponding path program 242 times [2022-02-15 11:29:13,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:13,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256156567] [2022-02-15 11:29:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:13,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:13,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:13,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256156567] [2022-02-15 11:29:13,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256156567] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:13,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:13,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:13,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691885870] [2022-02-15 11:29:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:13,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:13,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:13,273 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) [2022-02-15 11:29:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:13,740 INFO L93 Difference]: Finished difference Result 11306 states and 30445 transitions. [2022-02-15 11:29:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:29:13,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:13,758 INFO L225 Difference]: With dead ends: 11306 [2022-02-15 11:29:13,758 INFO L226 Difference]: Without dead ends: 10821 [2022-02-15 11:29:13,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:29:13,759 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 403 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 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 [2022-02-15 11:29:13,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 3701 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2022-02-15 11:29:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9000. [2022-02-15 11:29:13,862 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) [2022-02-15 11:29:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-15 11:29:13,877 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-15 11:29:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:13,877 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-15 11:29:13,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-15 11:29:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:13,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:13,887 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] [2022-02-15 11:29:13,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-02-15 11:29:13,887 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:13,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:13,888 INFO L85 PathProgramCache]: Analyzing trace with hash -701176852, now seen corresponding path program 243 times [2022-02-15 11:29:13,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:13,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73415142] [2022-02-15 11:29:13,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:13,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:14,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:14,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73415142] [2022-02-15 11:29:14,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73415142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:14,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:14,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:14,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140542906] [2022-02-15 11:29:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:14,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:14,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:14,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:14,002 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) [2022-02-15 11:29:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:14,483 INFO L93 Difference]: Finished difference Result 11280 states and 30378 transitions. [2022-02-15 11:29:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:14,484 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:14,501 INFO L225 Difference]: With dead ends: 11280 [2022-02-15 11:29:14,501 INFO L226 Difference]: Without dead ends: 10794 [2022-02-15 11:29:14,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:14,501 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 [2022-02-15 11:29:14,501 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] [2022-02-15 11:29:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-02-15 11:29:14,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 8996. [2022-02-15 11:29:14,624 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) [2022-02-15 11:29:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-15 11:29:14,641 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-15 11:29:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:14,641 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-15 11:29:14,641 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) [2022-02-15 11:29:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-15 11:29:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:14,652 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:14,652 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] [2022-02-15 11:29:14,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-02-15 11:29:14,653 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:14,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash -489296, now seen corresponding path program 244 times [2022-02-15 11:29:14,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:14,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101180155] [2022-02-15 11:29:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:14,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:14,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:14,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101180155] [2022-02-15 11:29:14,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101180155] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:14,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:14,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:14,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410568193] [2022-02-15 11:29:14,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:14,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:14,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:14,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:14,776 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) [2022-02-15 11:29:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:15,403 INFO L93 Difference]: Finished difference Result 11316 states and 30473 transitions. [2022-02-15 11:29:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:15,403 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 [2022-02-15 11:29:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:15,420 INFO L225 Difference]: With dead ends: 11316 [2022-02-15 11:29:15,421 INFO L226 Difference]: Without dead ends: 10790 [2022-02-15 11:29:15,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:29:15,421 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 431 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:15,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 3898 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-02-15 11:29:15,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 8992. [2022-02-15 11:29:15,538 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) [2022-02-15 11:29:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:29:15,554 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:29:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:15,554 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:29:15,554 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) [2022-02-15 11:29:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:29:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:15,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:15,565 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] [2022-02-15 11:29:15,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-02-15 11:29:15,565 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:15,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:15,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2144565760, now seen corresponding path program 245 times [2022-02-15 11:29:15,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:15,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890489137] [2022-02-15 11:29:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:15,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:15,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:15,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890489137] [2022-02-15 11:29:15,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890489137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:15,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:15,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:15,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589155554] [2022-02-15 11:29:15,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:15,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:15,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:15,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:15,696 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) [2022-02-15 11:29:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:16,430 INFO L93 Difference]: Finished difference Result 11352 states and 30568 transitions. [2022-02-15 11:29:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:16,431 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:16,449 INFO L225 Difference]: With dead ends: 11352 [2022-02-15 11:29:16,449 INFO L226 Difference]: Without dead ends: 10786 [2022-02-15 11:29:16,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:29:16,450 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 493 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3406 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 [2022-02-15 11:29:16,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 3406 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-02-15 11:29:16,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 8988. [2022-02-15 11:29:16,565 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) [2022-02-15 11:29:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:29:16,581 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:29:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:16,581 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:29:16,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:29:16,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:16,593 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:16,593 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] [2022-02-15 11:29:16,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-02-15 11:29:16,593 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1180374412, now seen corresponding path program 246 times [2022-02-15 11:29:16,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:16,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244893612] [2022-02-15 11:29:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:16,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:16,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:16,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244893612] [2022-02-15 11:29:16,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244893612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:16,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:16,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:16,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188927908] [2022-02-15 11:29:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:16,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:16,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:16,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:16,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:16,707 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) [2022-02-15 11:29:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:17,482 INFO L93 Difference]: Finished difference Result 11352 states and 30564 transitions. [2022-02-15 11:29:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 11:29:17,482 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 [2022-02-15 11:29:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:17,499 INFO L225 Difference]: With dead ends: 11352 [2022-02-15 11:29:17,499 INFO L226 Difference]: Without dead ends: 10742 [2022-02-15 11:29:17,499 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 [2022-02-15 11:29:17,500 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 [2022-02-15 11:29:17,500 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] [2022-02-15 11:29:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-02-15 11:29:17,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8980. [2022-02-15 11:29:17,622 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) [2022-02-15 11:29:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-15 11:29:17,639 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-15 11:29:17,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:17,639 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-15 11:29:17,639 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) [2022-02-15 11:29:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-15 11:29:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:17,651 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:17,651 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] [2022-02-15 11:29:17,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-02-15 11:29:17,651 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1589513272, now seen corresponding path program 247 times [2022-02-15 11:29:17,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:17,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998032304] [2022-02-15 11:29:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:17,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:17,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:17,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998032304] [2022-02-15 11:29:17,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998032304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:17,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:17,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:17,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076008777] [2022-02-15 11:29:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:17,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:17,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:17,757 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) [2022-02-15 11:29:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:18,180 INFO L93 Difference]: Finished difference Result 11166 states and 30060 transitions. [2022-02-15 11:29:18,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 11:29:18,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:18,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:18,196 INFO L225 Difference]: With dead ends: 11166 [2022-02-15 11:29:18,197 INFO L226 Difference]: Without dead ends: 10681 [2022-02-15 11:29:18,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:29:18,197 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 474 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 3665 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 [2022-02-15 11:29:18,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 3665 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-02-15 11:29:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 9004. [2022-02-15 11:29:18,313 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) [2022-02-15 11:29:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 24312 transitions. [2022-02-15 11:29:18,329 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 24312 transitions. Word has length 109 [2022-02-15 11:29:18,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:18,329 INFO L470 AbstractCegarLoop]: Abstraction has 9004 states and 24312 transitions. [2022-02-15 11:29:18,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:18,330 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 24312 transitions. [2022-02-15 11:29:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:18,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:18,340 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] [2022-02-15 11:29:18,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-02-15 11:29:18,341 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash -907892618, now seen corresponding path program 248 times [2022-02-15 11:29:18,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:18,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702029420] [2022-02-15 11:29:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:18,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:18,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:18,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:18,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702029420] [2022-02-15 11:29:18,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702029420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:18,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:18,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:18,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483183253] [2022-02-15 11:29:18,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:18,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:18,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:18,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:18,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:18,447 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) [2022-02-15 11:29:18,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:18,867 INFO L93 Difference]: Finished difference Result 11140 states and 29993 transitions. [2022-02-15 11:29:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:18,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:18,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:18,885 INFO L225 Difference]: With dead ends: 11140 [2022-02-15 11:29:18,885 INFO L226 Difference]: Without dead ends: 10654 [2022-02-15 11:29:18,885 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 [2022-02-15 11:29:18,885 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 534 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:18,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3403 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-02-15 11:29:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9000. [2022-02-15 11:29:19,003 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) [2022-02-15 11:29:19,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-15 11:29:19,019 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-15 11:29:19,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:19,020 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-15 11:29:19,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-15 11:29:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:19,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:19,031 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] [2022-02-15 11:29:19,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-02-15 11:29:19,031 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:19,031 INFO L85 PathProgramCache]: Analyzing trace with hash -207205062, now seen corresponding path program 249 times [2022-02-15 11:29:19,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:19,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155676059] [2022-02-15 11:29:19,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:19,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:19,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:19,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155676059] [2022-02-15 11:29:19,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155676059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:19,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:19,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:19,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510336369] [2022-02-15 11:29:19,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:19,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:19,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:19,150 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) [2022-02-15 11:29:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:19,702 INFO L93 Difference]: Finished difference Result 11176 states and 30088 transitions. [2022-02-15 11:29:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:19,702 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:19,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:19,718 INFO L225 Difference]: With dead ends: 11176 [2022-02-15 11:29:19,718 INFO L226 Difference]: Without dead ends: 10650 [2022-02-15 11:29:19,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:29:19,719 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 599 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 3420 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 [2022-02-15 11:29:19,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 3420 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-02-15 11:29:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 8996. [2022-02-15 11:29:19,841 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) [2022-02-15 11:29:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-15 11:29:19,858 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-15 11:29:19,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:19,858 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-15 11:29:19,858 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) [2022-02-15 11:29:19,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-15 11:29:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:19,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:19,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:19,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-02-15 11:29:19,869 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1943685770, now seen corresponding path program 250 times [2022-02-15 11:29:19,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:19,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226160107] [2022-02-15 11:29:19,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:19,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:19,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:19,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226160107] [2022-02-15 11:29:19,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226160107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:19,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:19,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:19,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227612820] [2022-02-15 11:29:19,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:19,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:19,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:19,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:19,984 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) [2022-02-15 11:29:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:20,678 INFO L93 Difference]: Finished difference Result 11212 states and 30183 transitions. [2022-02-15 11:29:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:20,679 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 [2022-02-15 11:29:20,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:20,695 INFO L225 Difference]: With dead ends: 11212 [2022-02-15 11:29:20,695 INFO L226 Difference]: Without dead ends: 10646 [2022-02-15 11:29:20,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:29:20,696 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 674 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:20,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 3522 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10646 states. [2022-02-15 11:29:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10646 to 8992. [2022-02-15 11:29:20,828 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) [2022-02-15 11:29:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-15 11:29:20,845 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-15 11:29:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:20,845 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-15 11:29:20,845 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) [2022-02-15 11:29:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-15 11:29:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:20,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:20,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:20,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-02-15 11:29:20,857 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1387090178, now seen corresponding path program 251 times [2022-02-15 11:29:20,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:20,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701909733] [2022-02-15 11:29:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:20,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:20,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:20,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701909733] [2022-02-15 11:29:20,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701909733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:20,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:20,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:20,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681638632] [2022-02-15 11:29:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:20,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:20,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:20,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:20,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:20,997 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) [2022-02-15 11:29:21,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:21,887 INFO L93 Difference]: Finished difference Result 11248 states and 30278 transitions. [2022-02-15 11:29:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 11:29:21,887 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:21,904 INFO L225 Difference]: With dead ends: 11248 [2022-02-15 11:29:21,904 INFO L226 Difference]: Without dead ends: 10642 [2022-02-15 11:29:21,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=847, Invalid=2935, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 11:29:21,905 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 725 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 4189 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 [2022-02-15 11:29:21,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 4189 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:21,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-02-15 11:29:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8988. [2022-02-15 11:29:22,021 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) [2022-02-15 11:29:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-15 11:29:22,037 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-15 11:29:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:22,037 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-15 11:29:22,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-15 11:29:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:22,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:22,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:22,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-02-15 11:29:22,049 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:22,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash 848592424, now seen corresponding path program 252 times [2022-02-15 11:29:22,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:22,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52917985] [2022-02-15 11:29:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:22,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:22,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:22,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52917985] [2022-02-15 11:29:22,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52917985] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:22,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:22,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:22,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906933503] [2022-02-15 11:29:22,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:22,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:22,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:22,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:22,160 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) [2022-02-15 11:29:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:22,951 INFO L93 Difference]: Finished difference Result 11861 states and 31739 transitions. [2022-02-15 11:29:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 11:29:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:22,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:22,967 INFO L225 Difference]: With dead ends: 11861 [2022-02-15 11:29:22,968 INFO L226 Difference]: Without dead ends: 10915 [2022-02-15 11:29:22,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 11:29:22,968 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 976 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2739 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 [2022-02-15 11:29:22,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 2739 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:22,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-02-15 11:29:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 8724. [2022-02-15 11:29:23,082 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) [2022-02-15 11:29:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 23571 transitions. [2022-02-15 11:29:23,098 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 23571 transitions. Word has length 109 [2022-02-15 11:29:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:23,098 INFO L470 AbstractCegarLoop]: Abstraction has 8724 states and 23571 transitions. [2022-02-15 11:29:23,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 23571 transitions. [2022-02-15 11:29:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:23,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:23,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:23,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-02-15 11:29:23,109 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2023938288, now seen corresponding path program 1 times [2022-02-15 11:29:23,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:23,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241572428] [2022-02-15 11:29:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:23,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:23,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:23,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241572428] [2022-02-15 11:29:23,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241572428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:23,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:23,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 11:29:23,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26240641] [2022-02-15 11:29:23,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:23,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 11:29:23,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 11:29:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 11:29:23,123 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) [2022-02-15 11:29:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:23,154 INFO L93 Difference]: Finished difference Result 7930 states and 20990 transitions. [2022-02-15 11:29:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 11:29:23,154 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 [2022-02-15 11:29:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:23,163 INFO L225 Difference]: With dead ends: 7930 [2022-02-15 11:29:23,164 INFO L226 Difference]: Without dead ends: 7930 [2022-02-15 11:29:23,164 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 [2022-02-15 11:29:23,164 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 [2022-02-15 11:29:23,164 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] [2022-02-15 11:29:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-02-15 11:29:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7930. [2022-02-15 11:29:23,249 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) [2022-02-15 11:29:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7930 states to 7930 states and 20990 transitions. [2022-02-15 11:29:23,262 INFO L78 Accepts]: Start accepts. Automaton has 7930 states and 20990 transitions. Word has length 109 [2022-02-15 11:29:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:23,262 INFO L470 AbstractCegarLoop]: Abstraction has 7930 states and 20990 transitions. [2022-02-15 11:29:23,263 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) [2022-02-15 11:29:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7930 states and 20990 transitions. [2022-02-15 11:29:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:23,271 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:23,271 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] [2022-02-15 11:29:23,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-02-15 11:29:23,271 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:23,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:23,272 INFO L85 PathProgramCache]: Analyzing trace with hash 118742352, now seen corresponding path program 1 times [2022-02-15 11:29:23,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:23,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95647692] [2022-02-15 11:29:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:23,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:23,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:23,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:23,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95647692] [2022-02-15 11:29:23,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95647692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:23,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:23,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:23,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330158149] [2022-02-15 11:29:23,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:23,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:23,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:23,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:23,381 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) [2022-02-15 11:29:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:24,339 INFO L93 Difference]: Finished difference Result 9314 states and 24487 transitions. [2022-02-15 11:29:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 11:29:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:24,351 INFO L225 Difference]: With dead ends: 9314 [2022-02-15 11:29:24,351 INFO L226 Difference]: Without dead ends: 8518 [2022-02-15 11:29:24,352 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 [2022-02-15 11:29:24,352 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 612 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 3052 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 [2022-02-15 11:29:24,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 3052 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:24,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-02-15 11:29:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7730. [2022-02-15 11:29:24,445 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) [2022-02-15 11:29:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20440 transitions. [2022-02-15 11:29:24,459 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20440 transitions. Word has length 109 [2022-02-15 11:29:24,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:24,459 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20440 transitions. [2022-02-15 11:29:24,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20440 transitions. [2022-02-15 11:29:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:24,468 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:24,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:24,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-02-15 11:29:24,468 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:24,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:24,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1474585368, now seen corresponding path program 2 times [2022-02-15 11:29:24,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:24,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935305982] [2022-02-15 11:29:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:24,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:24,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:24,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935305982] [2022-02-15 11:29:24,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935305982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:24,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:24,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:24,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167863595] [2022-02-15 11:29:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:24,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:24,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:24,592 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) [2022-02-15 11:29:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:25,029 INFO L93 Difference]: Finished difference Result 8756 states and 23083 transitions. [2022-02-15 11:29:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 11:29:25,029 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 [2022-02-15 11:29:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:25,040 INFO L225 Difference]: With dead ends: 8756 [2022-02-15 11:29:25,040 INFO L226 Difference]: Without dead ends: 8277 [2022-02-15 11:29:25,040 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 [2022-02-15 11:29:25,040 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 224 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2483 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 [2022-02-15 11:29:25,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2483 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-02-15 11:29:25,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 7746. [2022-02-15 11:29:25,128 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) [2022-02-15 11:29:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 20480 transitions. [2022-02-15 11:29:25,140 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 20480 transitions. Word has length 109 [2022-02-15 11:29:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:25,140 INFO L470 AbstractCegarLoop]: Abstraction has 7746 states and 20480 transitions. [2022-02-15 11:29:25,140 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) [2022-02-15 11:29:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 20480 transitions. [2022-02-15 11:29:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:25,148 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:25,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:25,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-02-15 11:29:25,149 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1192858810, now seen corresponding path program 3 times [2022-02-15 11:29:25,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:25,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400763693] [2022-02-15 11:29:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:25,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:25,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:25,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400763693] [2022-02-15 11:29:25,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400763693] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:25,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:25,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:25,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623899935] [2022-02-15 11:29:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:25,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:25,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:25,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:25,253 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) [2022-02-15 11:29:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:25,637 INFO L93 Difference]: Finished difference Result 8734 states and 23027 transitions. [2022-02-15 11:29:25,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:25,637 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:25,647 INFO L225 Difference]: With dead ends: 8734 [2022-02-15 11:29:25,647 INFO L226 Difference]: Without dead ends: 8254 [2022-02-15 11:29:25,648 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 [2022-02-15 11:29:25,648 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 237 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:25,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2338 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2022-02-15 11:29:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7742. [2022-02-15 11:29:25,729 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) [2022-02-15 11:29:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 20469 transitions. [2022-02-15 11:29:25,740 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 20469 transitions. Word has length 109 [2022-02-15 11:29:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:25,741 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 20469 transitions. [2022-02-15 11:29:25,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 20469 transitions. [2022-02-15 11:29:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:25,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:25,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:25,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-02-15 11:29:25,749 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1981051146, now seen corresponding path program 4 times [2022-02-15 11:29:25,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:25,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247994181] [2022-02-15 11:29:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:25,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:25,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:25,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247994181] [2022-02-15 11:29:25,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247994181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:25,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:25,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:25,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257146490] [2022-02-15 11:29:25,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:25,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:25,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:25,857 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) [2022-02-15 11:29:26,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:26,387 INFO L93 Difference]: Finished difference Result 8770 states and 23122 transitions. [2022-02-15 11:29:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:26,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:26,403 INFO L225 Difference]: With dead ends: 8770 [2022-02-15 11:29:26,403 INFO L226 Difference]: Without dead ends: 8250 [2022-02-15 11:29:26,403 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 [2022-02-15 11:29:26,404 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 299 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3355 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 [2022-02-15 11:29:26,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3355 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2022-02-15 11:29:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 7738. [2022-02-15 11:29:26,520 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) [2022-02-15 11:29:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7738 states to 7738 states and 20458 transitions. [2022-02-15 11:29:26,534 INFO L78 Accepts]: Start accepts. Automaton has 7738 states and 20458 transitions. Word has length 109 [2022-02-15 11:29:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:26,534 INFO L470 AbstractCegarLoop]: Abstraction has 7738 states and 20458 transitions. [2022-02-15 11:29:26,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7738 states and 20458 transitions. [2022-02-15 11:29:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:26,543 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:26,543 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] [2022-02-15 11:29:26,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-02-15 11:29:26,543 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:26,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:26,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1455915610, now seen corresponding path program 5 times [2022-02-15 11:29:26,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:26,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908809408] [2022-02-15 11:29:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:26,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:26,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:26,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908809408] [2022-02-15 11:29:26,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908809408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:26,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:26,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:26,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803839418] [2022-02-15 11:29:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:26,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:26,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:26,652 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) [2022-02-15 11:29:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:27,290 INFO L93 Difference]: Finished difference Result 8806 states and 23217 transitions. [2022-02-15 11:29:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:27,290 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 [2022-02-15 11:29:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:27,301 INFO L225 Difference]: With dead ends: 8806 [2022-02-15 11:29:27,301 INFO L226 Difference]: Without dead ends: 8246 [2022-02-15 11:29:27,302 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 [2022-02-15 11:29:27,302 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 361 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3190 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 [2022-02-15 11:29:27,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3190 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:27,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2022-02-15 11:29:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7734. [2022-02-15 11:29:27,392 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) [2022-02-15 11:29:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 20447 transitions. [2022-02-15 11:29:27,405 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 20447 transitions. Word has length 109 [2022-02-15 11:29:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:27,405 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 20447 transitions. [2022-02-15 11:29:27,405 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) [2022-02-15 11:29:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 20447 transitions. [2022-02-15 11:29:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:27,414 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:27,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:27,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-02-15 11:29:27,415 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:27,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2108208876, now seen corresponding path program 6 times [2022-02-15 11:29:27,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:27,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507023717] [2022-02-15 11:29:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:27,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:27,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:27,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507023717] [2022-02-15 11:29:27,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507023717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:27,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:27,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:27,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867375252] [2022-02-15 11:29:27,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:27,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:27,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:27,525 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) [2022-02-15 11:29:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:28,300 INFO L93 Difference]: Finished difference Result 8802 states and 23202 transitions. [2022-02-15 11:29:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 11:29:28,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:28,312 INFO L225 Difference]: With dead ends: 8802 [2022-02-15 11:29:28,312 INFO L226 Difference]: Without dead ends: 8182 [2022-02-15 11:29:28,313 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 [2022-02-15 11:29:28,313 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 431 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3149 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 [2022-02-15 11:29:28,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 3149 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-02-15 11:29:28,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 7710. [2022-02-15 11:29:28,414 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) [2022-02-15 11:29:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20385 transitions. [2022-02-15 11:29:28,428 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20385 transitions. Word has length 109 [2022-02-15 11:29:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:28,429 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20385 transitions. [2022-02-15 11:29:28,429 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) [2022-02-15 11:29:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20385 transitions. [2022-02-15 11:29:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:28,438 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:28,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:28,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-02-15 11:29:28,438 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:28,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1960844258, now seen corresponding path program 7 times [2022-02-15 11:29:28,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:28,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379178967] [2022-02-15 11:29:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:28,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:28,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:28,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379178967] [2022-02-15 11:29:28,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379178967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:28,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:28,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:28,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068328432] [2022-02-15 11:29:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:28,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:28,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:28,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:28,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:28,555 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) [2022-02-15 11:29:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:28,999 INFO L93 Difference]: Finished difference Result 8976 states and 23688 transitions. [2022-02-15 11:29:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:29:28,999 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:29,011 INFO L225 Difference]: With dead ends: 8976 [2022-02-15 11:29:29,011 INFO L226 Difference]: Without dead ends: 8497 [2022-02-15 11:29:29,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:29:29,012 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 234 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2233 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 [2022-02-15 11:29:29,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2233 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:29,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-02-15 11:29:29,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 7730. [2022-02-15 11:29:29,106 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) [2022-02-15 11:29:29,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20436 transitions. [2022-02-15 11:29:29,121 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20436 transitions. Word has length 109 [2022-02-15 11:29:29,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:29,121 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20436 transitions. [2022-02-15 11:29:29,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:29,121 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20436 transitions. [2022-02-15 11:29:29,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:29,130 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:29,130 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] [2022-02-15 11:29:29,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-02-15 11:29:29,130 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:29,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash -706599920, now seen corresponding path program 8 times [2022-02-15 11:29:29,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:29,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732390282] [2022-02-15 11:29:29,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:29,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:29,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:29,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732390282] [2022-02-15 11:29:29,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732390282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:29,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:29,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:29,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833493200] [2022-02-15 11:29:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:29,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:29,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:29,243 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) [2022-02-15 11:29:29,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:29,705 INFO L93 Difference]: Finished difference Result 8942 states and 23599 transitions. [2022-02-15 11:29:29,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:29,705 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 [2022-02-15 11:29:29,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:29,717 INFO L225 Difference]: With dead ends: 8942 [2022-02-15 11:29:29,717 INFO L226 Difference]: Without dead ends: 8462 [2022-02-15 11:29:29,718 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 [2022-02-15 11:29:29,718 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 229 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2918 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 [2022-02-15 11:29:29,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2918 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2022-02-15 11:29:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 7726. [2022-02-15 11:29:29,817 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) [2022-02-15 11:29:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20425 transitions. [2022-02-15 11:29:29,830 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20425 transitions. Word has length 109 [2022-02-15 11:29:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:29,830 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20425 transitions. [2022-02-15 11:29:29,830 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) [2022-02-15 11:29:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20425 transitions. [2022-02-15 11:29:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:29,839 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:29,839 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] [2022-02-15 11:29:29,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-02-15 11:29:29,839 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1827657260, now seen corresponding path program 9 times [2022-02-15 11:29:29,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:29,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58328735] [2022-02-15 11:29:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:29,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:29,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:29,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58328735] [2022-02-15 11:29:29,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58328735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:29,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:29,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:29,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082264563] [2022-02-15 11:29:29,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:29,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:29,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:29,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:29,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:29,954 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) [2022-02-15 11:29:30,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:30,532 INFO L93 Difference]: Finished difference Result 8978 states and 23694 transitions. [2022-02-15 11:29:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:30,532 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 [2022-02-15 11:29:30,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:30,545 INFO L225 Difference]: With dead ends: 8978 [2022-02-15 11:29:30,545 INFO L226 Difference]: Without dead ends: 8458 [2022-02-15 11:29:30,546 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 [2022-02-15 11:29:30,546 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:30,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 3220 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:29:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-02-15 11:29:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7722. [2022-02-15 11:29:30,644 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) [2022-02-15 11:29:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20414 transitions. [2022-02-15 11:29:30,657 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20414 transitions. Word has length 109 [2022-02-15 11:29:30,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:30,657 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20414 transitions. [2022-02-15 11:29:30,658 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) [2022-02-15 11:29:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20414 transitions. [2022-02-15 11:29:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:30,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:30,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:30,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-02-15 11:29:30,666 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:30,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1942174500, now seen corresponding path program 10 times [2022-02-15 11:29:30,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:30,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220670525] [2022-02-15 11:29:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:30,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:30,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:30,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220670525] [2022-02-15 11:29:30,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220670525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:30,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:30,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:30,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232659342] [2022-02-15 11:29:30,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:30,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:30,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:30,778 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) [2022-02-15 11:29:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:31,441 INFO L93 Difference]: Finished difference Result 9206 states and 24293 transitions. [2022-02-15 11:29:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:29:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:31,454 INFO L225 Difference]: With dead ends: 9206 [2022-02-15 11:29:31,454 INFO L226 Difference]: Without dead ends: 8646 [2022-02-15 11:29:31,454 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 [2022-02-15 11:29:31,455 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 373 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 3059 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 [2022-02-15 11:29:31,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 3059 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-02-15 11:29:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7718. [2022-02-15 11:29:31,547 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) [2022-02-15 11:29:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20403 transitions. [2022-02-15 11:29:31,559 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20403 transitions. Word has length 109 [2022-02-15 11:29:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:31,560 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20403 transitions. [2022-02-15 11:29:31,560 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) [2022-02-15 11:29:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20403 transitions. [2022-02-15 11:29:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:31,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:31,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:31,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-02-15 11:29:31,568 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861096, now seen corresponding path program 11 times [2022-02-15 11:29:31,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:31,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010156145] [2022-02-15 11:29:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:31,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:31,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:31,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010156145] [2022-02-15 11:29:31,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010156145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:31,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:31,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:31,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879915803] [2022-02-15 11:29:31,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:31,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:31,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:31,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:31,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:31,685 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) [2022-02-15 11:29:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:32,174 INFO L93 Difference]: Finished difference Result 8952 states and 23618 transitions. [2022-02-15 11:29:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:32,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:32,186 INFO L225 Difference]: With dead ends: 8952 [2022-02-15 11:29:32,187 INFO L226 Difference]: Without dead ends: 8473 [2022-02-15 11:29:32,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:29:32,187 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 224 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2627 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 [2022-02-15 11:29:32,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2627 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-02-15 11:29:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 7730. [2022-02-15 11:29:32,292 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) [2022-02-15 11:29:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-02-15 11:29:32,306 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-02-15 11:29:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:32,306 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-02-15 11:29:32,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-02-15 11:29:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:32,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:32,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:32,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-02-15 11:29:32,315 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:32,316 INFO L85 PathProgramCache]: Analyzing trace with hash -915583082, now seen corresponding path program 12 times [2022-02-15 11:29:32,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:32,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003559678] [2022-02-15 11:29:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:32,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:32,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:32,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003559678] [2022-02-15 11:29:32,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003559678] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:32,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:32,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:32,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599844988] [2022-02-15 11:29:32,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:32,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:32,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:32,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:32,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:32,427 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) [2022-02-15 11:29:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:32,906 INFO L93 Difference]: Finished difference Result 8910 states and 23507 transitions. [2022-02-15 11:29:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:32,906 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:32,918 INFO L225 Difference]: With dead ends: 8910 [2022-02-15 11:29:32,918 INFO L226 Difference]: Without dead ends: 8430 [2022-02-15 11:29:32,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:32,919 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 223 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3121 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 [2022-02-15 11:29:32,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3121 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-02-15 11:29:33,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 7726. [2022-02-15 11:29:33,014 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) [2022-02-15 11:29:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-02-15 11:29:33,028 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-02-15 11:29:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:33,028 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-02-15 11:29:33,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-02-15 11:29:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:33,037 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:33,037 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] [2022-02-15 11:29:33,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-02-15 11:29:33,037 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:33,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:33,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2036640422, now seen corresponding path program 13 times [2022-02-15 11:29:33,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:33,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349039000] [2022-02-15 11:29:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:33,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:33,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:33,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349039000] [2022-02-15 11:29:33,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349039000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:33,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:33,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:33,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88288404] [2022-02-15 11:29:33,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:33,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:33,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:33,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:33,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:33,150 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) [2022-02-15 11:29:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:33,685 INFO L93 Difference]: Finished difference Result 9078 states and 23949 transitions. [2022-02-15 11:29:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:29:33,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:33,697 INFO L225 Difference]: With dead ends: 9078 [2022-02-15 11:29:33,697 INFO L226 Difference]: Without dead ends: 8558 [2022-02-15 11:29:33,698 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 [2022-02-15 11:29:33,698 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 312 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2772 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 [2022-02-15 11:29:33,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2772 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-02-15 11:29:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7722. [2022-02-15 11:29:33,790 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) [2022-02-15 11:29:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-02-15 11:29:33,803 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-02-15 11:29:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:33,804 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-02-15 11:29:33,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-02-15 11:29:33,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:33,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:33,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:33,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-02-15 11:29:33,812 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:33,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1964010698, now seen corresponding path program 14 times [2022-02-15 11:29:33,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:33,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734608429] [2022-02-15 11:29:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:33,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:33,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:33,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734608429] [2022-02-15 11:29:33,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734608429] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:33,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:33,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:33,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580620789] [2022-02-15 11:29:33,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:33,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:33,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:33,923 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) [2022-02-15 11:29:34,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:34,500 INFO L93 Difference]: Finished difference Result 8956 states and 23600 transitions. [2022-02-15 11:29:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 11:29:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:34,512 INFO L225 Difference]: With dead ends: 8956 [2022-02-15 11:29:34,512 INFO L226 Difference]: Without dead ends: 8434 [2022-02-15 11:29:34,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:29:34,512 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 286 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2727 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 [2022-02-15 11:29:34,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 2727 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-02-15 11:29:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 7726. [2022-02-15 11:29:34,604 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) [2022-02-15 11:29:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20417 transitions. [2022-02-15 11:29:34,617 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20417 transitions. Word has length 109 [2022-02-15 11:29:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:34,617 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20417 transitions. [2022-02-15 11:29:34,617 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) [2022-02-15 11:29:34,617 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20417 transitions. [2022-02-15 11:29:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:34,626 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:34,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:34,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-02-15 11:29:34,626 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:34,627 INFO L85 PathProgramCache]: Analyzing trace with hash 773041248, now seen corresponding path program 15 times [2022-02-15 11:29:34,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:34,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715314400] [2022-02-15 11:29:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:34,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:34,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:34,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715314400] [2022-02-15 11:29:34,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715314400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:34,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:34,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:34,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363685390] [2022-02-15 11:29:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:34,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:34,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:34,741 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) [2022-02-15 11:29:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:35,270 INFO L93 Difference]: Finished difference Result 8888 states and 23434 transitions. [2022-02-15 11:29:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:35,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:35,281 INFO L225 Difference]: With dead ends: 8888 [2022-02-15 11:29:35,281 INFO L226 Difference]: Without dead ends: 8409 [2022-02-15 11:29:35,281 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 [2022-02-15 11:29:35,281 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 235 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2739 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 [2022-02-15 11:29:35,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2739 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-02-15 11:29:35,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7730. [2022-02-15 11:29:35,370 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) [2022-02-15 11:29:35,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20424 transitions. [2022-02-15 11:29:35,384 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20424 transitions. Word has length 109 [2022-02-15 11:29:35,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:35,384 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20424 transitions. [2022-02-15 11:29:35,384 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) [2022-02-15 11:29:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20424 transitions. [2022-02-15 11:29:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:35,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:35,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:35,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-02-15 11:29:35,393 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:35,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:35,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1894402930, now seen corresponding path program 16 times [2022-02-15 11:29:35,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:35,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939809712] [2022-02-15 11:29:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:35,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:35,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:35,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939809712] [2022-02-15 11:29:35,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939809712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:35,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:35,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:35,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711553886] [2022-02-15 11:29:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:35,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:35,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:35,504 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) [2022-02-15 11:29:35,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:35,902 INFO L93 Difference]: Finished difference Result 8838 states and 23301 transitions. [2022-02-15 11:29:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:35,915 INFO L225 Difference]: With dead ends: 8838 [2022-02-15 11:29:35,915 INFO L226 Difference]: Without dead ends: 8346 [2022-02-15 11:29:35,915 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 [2022-02-15 11:29:35,915 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 225 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2337 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 [2022-02-15 11:29:35,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2337 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:35,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8346 states. [2022-02-15 11:29:36,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8346 to 7714. [2022-02-15 11:29:36,010 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) [2022-02-15 11:29:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-02-15 11:29:36,024 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-02-15 11:29:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:36,025 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-02-15 11:29:36,025 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) [2022-02-15 11:29:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-02-15 11:29:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:36,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:36,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:36,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-02-15 11:29:36,034 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:36,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:36,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1140279682, now seen corresponding path program 17 times [2022-02-15 11:29:36,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:36,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516613041] [2022-02-15 11:29:36,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:36,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:36,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:36,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516613041] [2022-02-15 11:29:36,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516613041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:36,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:36,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:36,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250638726] [2022-02-15 11:29:36,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:36,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:36,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:36,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:36,150 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) [2022-02-15 11:29:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:36,600 INFO L93 Difference]: Finished difference Result 8820 states and 23255 transitions. [2022-02-15 11:29:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:29:36,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:36,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:36,613 INFO L225 Difference]: With dead ends: 8820 [2022-02-15 11:29:36,613 INFO L226 Difference]: Without dead ends: 8341 [2022-02-15 11:29:36,613 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 [2022-02-15 11:29:36,613 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 227 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2615 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 [2022-02-15 11:29:36,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2615 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-02-15 11:29:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 7730. [2022-02-15 11:29:36,716 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) [2022-02-15 11:29:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-02-15 11:29:36,729 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-02-15 11:29:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:36,730 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-02-15 11:29:36,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-02-15 11:29:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:36,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:36,739 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] [2022-02-15 11:29:36,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-02-15 11:29:36,739 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:36,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1527164496, now seen corresponding path program 18 times [2022-02-15 11:29:36,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:36,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253876638] [2022-02-15 11:29:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:36,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:36,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:36,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253876638] [2022-02-15 11:29:36,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253876638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:36,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:36,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:36,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776027321] [2022-02-15 11:29:36,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:36,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:36,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:36,855 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) [2022-02-15 11:29:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:37,304 INFO L93 Difference]: Finished difference Result 8798 states and 23199 transitions. [2022-02-15 11:29:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:37,305 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:37,316 INFO L225 Difference]: With dead ends: 8798 [2022-02-15 11:29:37,316 INFO L226 Difference]: Without dead ends: 8318 [2022-02-15 11:29:37,317 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 [2022-02-15 11:29:37,317 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 [2022-02-15 11:29:37,317 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] [2022-02-15 11:29:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-02-15 11:29:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 7726. [2022-02-15 11:29:37,406 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) [2022-02-15 11:29:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-02-15 11:29:37,420 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-02-15 11:29:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:37,420 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-02-15 11:29:37,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-02-15 11:29:37,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:37,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:37,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:37,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-02-15 11:29:37,429 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:37,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:37,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1646745460, now seen corresponding path program 19 times [2022-02-15 11:29:37,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:37,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367695850] [2022-02-15 11:29:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:37,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:37,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:37,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367695850] [2022-02-15 11:29:37,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367695850] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:37,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:37,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:37,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094297811] [2022-02-15 11:29:37,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:37,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:37,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:37,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:37,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:37,544 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) [2022-02-15 11:29:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:38,090 INFO L93 Difference]: Finished difference Result 8834 states and 23294 transitions. [2022-02-15 11:29:38,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:38,090 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 [2022-02-15 11:29:38,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:38,102 INFO L225 Difference]: With dead ends: 8834 [2022-02-15 11:29:38,102 INFO L226 Difference]: Without dead ends: 8314 [2022-02-15 11:29:38,102 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 [2022-02-15 11:29:38,103 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 323 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2975 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 [2022-02-15 11:29:38,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2975 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-02-15 11:29:38,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 7722. [2022-02-15 11:29:38,195 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) [2022-02-15 11:29:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-02-15 11:29:38,208 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-02-15 11:29:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:38,208 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-02-15 11:29:38,208 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) [2022-02-15 11:29:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-02-15 11:29:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:38,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:38,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:38,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-02-15 11:29:38,218 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:38,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:38,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1121609924, now seen corresponding path program 20 times [2022-02-15 11:29:38,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:38,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750533676] [2022-02-15 11:29:38,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:38,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:38,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:38,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750533676] [2022-02-15 11:29:38,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750533676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:38,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:38,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:38,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839110241] [2022-02-15 11:29:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:38,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:38,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:38,331 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) [2022-02-15 11:29:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:38,992 INFO L93 Difference]: Finished difference Result 8870 states and 23389 transitions. [2022-02-15 11:29:38,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:38,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:38,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:39,004 INFO L225 Difference]: With dead ends: 8870 [2022-02-15 11:29:39,004 INFO L226 Difference]: Without dead ends: 8310 [2022-02-15 11:29:39,005 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 [2022-02-15 11:29:39,005 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 [2022-02-15 11:29:39,005 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] [2022-02-15 11:29:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-02-15 11:29:39,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 7718. [2022-02-15 11:29:39,098 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) [2022-02-15 11:29:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20399 transitions. [2022-02-15 11:29:39,111 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20399 transitions. Word has length 109 [2022-02-15 11:29:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:39,112 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20399 transitions. [2022-02-15 11:29:39,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20399 transitions. [2022-02-15 11:29:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:39,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:39,121 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] [2022-02-15 11:29:39,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-02-15 11:29:39,121 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1773903190, now seen corresponding path program 21 times [2022-02-15 11:29:39,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:39,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185719071] [2022-02-15 11:29:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:39,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:39,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:39,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185719071] [2022-02-15 11:29:39,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185719071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:39,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:39,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:39,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035671834] [2022-02-15 11:29:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:39,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:39,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:39,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:39,234 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) [2022-02-15 11:29:39,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:39,996 INFO L93 Difference]: Finished difference Result 8786 states and 23154 transitions. [2022-02-15 11:29:39,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 11:29:39,996 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:39,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:40,008 INFO L225 Difference]: With dead ends: 8786 [2022-02-15 11:29:40,008 INFO L226 Difference]: Without dead ends: 8162 [2022-02-15 11:29:40,009 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 [2022-02-15 11:29:40,009 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 [2022-02-15 11:29:40,009 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] [2022-02-15 11:29:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-02-15 11:29:40,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7690. [2022-02-15 11:29:40,108 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) [2022-02-15 11:29:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20330 transitions. [2022-02-15 11:29:40,122 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20330 transitions. Word has length 109 [2022-02-15 11:29:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:40,122 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20330 transitions. [2022-02-15 11:29:40,122 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) [2022-02-15 11:29:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20330 transitions. [2022-02-15 11:29:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:40,131 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:40,131 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] [2022-02-15 11:29:40,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-02-15 11:29:40,132 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 252922488, now seen corresponding path program 22 times [2022-02-15 11:29:40,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:40,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458074882] [2022-02-15 11:29:40,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:40,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:40,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:40,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458074882] [2022-02-15 11:29:40,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458074882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:40,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:40,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:40,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299452351] [2022-02-15 11:29:40,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:40,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:40,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:40,277 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) [2022-02-15 11:29:40,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:40,779 INFO L93 Difference]: Finished difference Result 9176 states and 24238 transitions. [2022-02-15 11:29:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:29:40,780 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 [2022-02-15 11:29:40,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:40,791 INFO L225 Difference]: With dead ends: 9176 [2022-02-15 11:29:40,792 INFO L226 Difference]: Without dead ends: 8697 [2022-02-15 11:29:40,792 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 [2022-02-15 11:29:40,792 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 230 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2582 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 [2022-02-15 11:29:40,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2582 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-15 11:29:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7714. [2022-02-15 11:29:40,889 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) [2022-02-15 11:29:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-02-15 11:29:40,902 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-02-15 11:29:40,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:40,902 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-02-15 11:29:40,902 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) [2022-02-15 11:29:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-02-15 11:29:40,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:40,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:40,912 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] [2022-02-15 11:29:40,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-02-15 11:29:40,912 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:40,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1880445606, now seen corresponding path program 23 times [2022-02-15 11:29:40,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:40,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832050097] [2022-02-15 11:29:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:40,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:41,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:41,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832050097] [2022-02-15 11:29:41,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832050097] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:41,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:41,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:41,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938967290] [2022-02-15 11:29:41,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:41,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:41,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:41,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:41,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:41,028 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) [2022-02-15 11:29:41,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:41,510 INFO L93 Difference]: Finished difference Result 9142 states and 24149 transitions. [2022-02-15 11:29:41,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:41,511 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:41,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:41,523 INFO L225 Difference]: With dead ends: 9142 [2022-02-15 11:29:41,523 INFO L226 Difference]: Without dead ends: 8662 [2022-02-15 11:29:41,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:41,524 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 [2022-02-15 11:29:41,524 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] [2022-02-15 11:29:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-02-15 11:29:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 7710. [2022-02-15 11:29:41,624 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) [2022-02-15 11:29:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20381 transitions. [2022-02-15 11:29:41,637 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20381 transitions. Word has length 109 [2022-02-15 11:29:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:41,637 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20381 transitions. [2022-02-15 11:29:41,637 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) [2022-02-15 11:29:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20381 transitions. [2022-02-15 11:29:41,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:41,646 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:41,646 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] [2022-02-15 11:29:41,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-02-15 11:29:41,646 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:41,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:41,647 INFO L85 PathProgramCache]: Analyzing trace with hash 759388266, now seen corresponding path program 24 times [2022-02-15 11:29:41,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:41,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852553369] [2022-02-15 11:29:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:41,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:41,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:41,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852553369] [2022-02-15 11:29:41,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852553369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:41,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:41,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:41,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828423985] [2022-02-15 11:29:41,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:41,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:41,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:41,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:41,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:41,766 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) [2022-02-15 11:29:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:42,353 INFO L93 Difference]: Finished difference Result 9178 states and 24244 transitions. [2022-02-15 11:29:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:42,353 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 [2022-02-15 11:29:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:42,366 INFO L225 Difference]: With dead ends: 9178 [2022-02-15 11:29:42,366 INFO L226 Difference]: Without dead ends: 8658 [2022-02-15 11:29:42,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:29:42,367 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 [2022-02-15 11:29:42,367 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] [2022-02-15 11:29:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-15 11:29:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7706. [2022-02-15 11:29:42,471 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) [2022-02-15 11:29:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20370 transitions. [2022-02-15 11:29:42,486 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20370 transitions. Word has length 109 [2022-02-15 11:29:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:42,486 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20370 transitions. [2022-02-15 11:29:42,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20370 transitions. [2022-02-15 11:29:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:42,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:42,495 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] [2022-02-15 11:29:42,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-02-15 11:29:42,495 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash 234252730, now seen corresponding path program 25 times [2022-02-15 11:29:42,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:42,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825962072] [2022-02-15 11:29:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:42,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:42,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:42,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825962072] [2022-02-15 11:29:42,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825962072] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:42,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:42,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:42,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937759277] [2022-02-15 11:29:42,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:42,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:42,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:42,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:42,614 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) [2022-02-15 11:29:43,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:43,299 INFO L93 Difference]: Finished difference Result 9406 states and 24843 transitions. [2022-02-15 11:29:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:29:43,300 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:43,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:43,313 INFO L225 Difference]: With dead ends: 9406 [2022-02-15 11:29:43,313 INFO L226 Difference]: Without dead ends: 8846 [2022-02-15 11:29:43,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:29:43,313 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 380 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2959 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 [2022-02-15 11:29:43,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2959 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-15 11:29:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7702. [2022-02-15 11:29:43,417 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) [2022-02-15 11:29:43,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20359 transitions. [2022-02-15 11:29:43,432 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20359 transitions. Word has length 109 [2022-02-15 11:29:43,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:43,432 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20359 transitions. [2022-02-15 11:29:43,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:43,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20359 transitions. [2022-02-15 11:29:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:43,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:43,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:43,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-02-15 11:29:43,442 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:43,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash 43939326, now seen corresponding path program 26 times [2022-02-15 11:29:43,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:43,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213523216] [2022-02-15 11:29:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:43,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:43,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:43,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213523216] [2022-02-15 11:29:43,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213523216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:43,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:43,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:43,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864195090] [2022-02-15 11:29:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:43,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:43,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:43,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:43,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:43,563 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) [2022-02-15 11:29:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:44,020 INFO L93 Difference]: Finished difference Result 9152 states and 24168 transitions. [2022-02-15 11:29:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:44,021 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 [2022-02-15 11:29:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:44,031 INFO L225 Difference]: With dead ends: 9152 [2022-02-15 11:29:44,031 INFO L226 Difference]: Without dead ends: 8673 [2022-02-15 11:29:44,032 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 [2022-02-15 11:29:44,032 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 233 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2363 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 [2022-02-15 11:29:44,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2363 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2022-02-15 11:29:44,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7714. [2022-02-15 11:29:44,131 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) [2022-02-15 11:29:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-15 11:29:44,145 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-15 11:29:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:44,145 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-15 11:29:44,145 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) [2022-02-15 11:29:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-15 11:29:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:44,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:44,155 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] [2022-02-15 11:29:44,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-02-15 11:29:44,155 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:44,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1671462444, now seen corresponding path program 27 times [2022-02-15 11:29:44,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:44,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351901689] [2022-02-15 11:29:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:44,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:44,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:44,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351901689] [2022-02-15 11:29:44,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351901689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:44,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:44,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:44,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342944583] [2022-02-15 11:29:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:44,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:44,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:44,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:44,275 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) [2022-02-15 11:29:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:44,745 INFO L93 Difference]: Finished difference Result 9110 states and 24057 transitions. [2022-02-15 11:29:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:44,745 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 [2022-02-15 11:29:44,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:44,756 INFO L225 Difference]: With dead ends: 9110 [2022-02-15 11:29:44,756 INFO L226 Difference]: Without dead ends: 8630 [2022-02-15 11:29:44,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:44,756 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 [2022-02-15 11:29:44,756 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] [2022-02-15 11:29:44,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2022-02-15 11:29:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 7710. [2022-02-15 11:29:44,833 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) [2022-02-15 11:29:44,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-15 11:29:44,845 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-15 11:29:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:44,845 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-15 11:29:44,845 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) [2022-02-15 11:29:44,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-15 11:29:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:44,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:44,852 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] [2022-02-15 11:29:44,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-02-15 11:29:44,853 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash 550405104, now seen corresponding path program 28 times [2022-02-15 11:29:44,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:44,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917453188] [2022-02-15 11:29:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:44,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:44,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:44,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917453188] [2022-02-15 11:29:44,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917453188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:44,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:44,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:44,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828040009] [2022-02-15 11:29:44,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:44,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:44,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:44,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:44,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:44,971 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) [2022-02-15 11:29:45,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:45,554 INFO L93 Difference]: Finished difference Result 9278 states and 24499 transitions. [2022-02-15 11:29:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:29:45,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:45,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:45,567 INFO L225 Difference]: With dead ends: 9278 [2022-02-15 11:29:45,567 INFO L226 Difference]: Without dead ends: 8758 [2022-02-15 11:29:45,567 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 [2022-02-15 11:29:45,567 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 [2022-02-15 11:29:45,567 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] [2022-02-15 11:29:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-02-15 11:29:45,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7706. [2022-02-15 11:29:45,665 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) [2022-02-15 11:29:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-15 11:29:45,679 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-15 11:29:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:45,679 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-15 11:29:45,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-15 11:29:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:45,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:45,688 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:45,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-02-15 11:29:45,689 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash 623034828, now seen corresponding path program 29 times [2022-02-15 11:29:45,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:45,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729800748] [2022-02-15 11:29:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:45,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:45,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:45,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729800748] [2022-02-15 11:29:45,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729800748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:45,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:45,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:45,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018589024] [2022-02-15 11:29:45,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:45,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:45,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:45,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:45,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:45,802 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) [2022-02-15 11:29:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:46,357 INFO L93 Difference]: Finished difference Result 9196 states and 24260 transitions. [2022-02-15 11:29:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:29:46,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:46,369 INFO L225 Difference]: With dead ends: 9196 [2022-02-15 11:29:46,369 INFO L226 Difference]: Without dead ends: 8674 [2022-02-15 11:29:46,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:29:46,369 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 291 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2885 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 [2022-02-15 11:29:46,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2885 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2022-02-15 11:29:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 7710. [2022-02-15 11:29:46,462 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) [2022-02-15 11:29:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-15 11:29:46,475 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-15 11:29:46,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:46,476 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-15 11:29:46,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:46,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-15 11:29:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:46,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:46,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:46,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-02-15 11:29:46,485 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -934880522, now seen corresponding path program 30 times [2022-02-15 11:29:46,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:46,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331400316] [2022-02-15 11:29:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:46,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:46,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:46,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331400316] [2022-02-15 11:29:46,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331400316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:46,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:46,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:46,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549344928] [2022-02-15 11:29:46,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:46,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:46,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:46,603 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) [2022-02-15 11:29:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:47,120 INFO L93 Difference]: Finished difference Result 9096 states and 24006 transitions. [2022-02-15 11:29:47,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:47,133 INFO L225 Difference]: With dead ends: 9096 [2022-02-15 11:29:47,133 INFO L226 Difference]: Without dead ends: 8617 [2022-02-15 11:29:47,134 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 [2022-02-15 11:29:47,134 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 219 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3004 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 [2022-02-15 11:29:47,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3004 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2022-02-15 11:29:47,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 7714. [2022-02-15 11:29:47,229 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) [2022-02-15 11:29:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20380 transitions. [2022-02-15 11:29:47,242 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20380 transitions. Word has length 109 [2022-02-15 11:29:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:47,242 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20380 transitions. [2022-02-15 11:29:47,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20380 transitions. [2022-02-15 11:29:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:47,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:47,251 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] [2022-02-15 11:29:47,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-02-15 11:29:47,252 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:47,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:47,252 INFO L85 PathProgramCache]: Analyzing trace with hash 692642596, now seen corresponding path program 31 times [2022-02-15 11:29:47,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:47,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860409087] [2022-02-15 11:29:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:47,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:47,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:47,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:47,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860409087] [2022-02-15 11:29:47,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860409087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:47,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:47,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:47,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669293861] [2022-02-15 11:29:47,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:47,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:47,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:47,365 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) [2022-02-15 11:29:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:47,811 INFO L93 Difference]: Finished difference Result 9046 states and 23873 transitions. [2022-02-15 11:29:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:47,812 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 [2022-02-15 11:29:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:47,824 INFO L225 Difference]: With dead ends: 9046 [2022-02-15 11:29:47,824 INFO L226 Difference]: Without dead ends: 8554 [2022-02-15 11:29:47,825 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 [2022-02-15 11:29:47,825 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 223 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2826 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 [2022-02-15 11:29:47,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2826 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:47,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-02-15 11:29:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7698. [2022-02-15 11:29:47,921 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) [2022-02-15 11:29:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-02-15 11:29:47,935 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-02-15 11:29:47,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:47,936 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-02-15 11:29:47,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-02-15 11:29:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:47,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:47,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:47,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-02-15 11:29:47,946 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:47,946 INFO L85 PathProgramCache]: Analyzing trace with hash -567642088, now seen corresponding path program 32 times [2022-02-15 11:29:47,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:47,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299769895] [2022-02-15 11:29:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:47,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:48,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:48,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299769895] [2022-02-15 11:29:48,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299769895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:48,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:48,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:48,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37684567] [2022-02-15 11:29:48,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:48,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:48,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:48,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:48,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:48,066 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) [2022-02-15 11:29:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:48,507 INFO L93 Difference]: Finished difference Result 8988 states and 23717 transitions. [2022-02-15 11:29:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:29:48,508 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 [2022-02-15 11:29:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:48,519 INFO L225 Difference]: With dead ends: 8988 [2022-02-15 11:29:48,519 INFO L226 Difference]: Without dead ends: 8509 [2022-02-15 11:29:48,519 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 [2022-02-15 11:29:48,520 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 210 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2529 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 [2022-02-15 11:29:48,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2529 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-02-15 11:29:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7714. [2022-02-15 11:29:48,618 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) [2022-02-15 11:29:48,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-15 11:29:48,632 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-15 11:29:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:48,632 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-15 11:29:48,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-15 11:29:48,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:48,644 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:48,644 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] [2022-02-15 11:29:48,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-02-15 11:29:48,644 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:48,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:48,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1059881030, now seen corresponding path program 33 times [2022-02-15 11:29:48,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:48,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677596237] [2022-02-15 11:29:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:48,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:48,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:48,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677596237] [2022-02-15 11:29:48,760 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677596237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:48,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:48,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:48,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188104611] [2022-02-15 11:29:48,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:48,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:48,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:48,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:48,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:48,761 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) [2022-02-15 11:29:49,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:49,224 INFO L93 Difference]: Finished difference Result 8958 states and 23639 transitions. [2022-02-15 11:29:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:49,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:49,236 INFO L225 Difference]: With dead ends: 8958 [2022-02-15 11:29:49,236 INFO L226 Difference]: Without dead ends: 8478 [2022-02-15 11:29:49,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:29:49,236 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 228 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2830 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 [2022-02-15 11:29:49,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2830 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-02-15 11:29:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 7710. [2022-02-15 11:29:49,326 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) [2022-02-15 11:29:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-15 11:29:49,339 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-15 11:29:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:49,339 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-15 11:29:49,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-15 11:29:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:49,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:49,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:49,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-02-15 11:29:49,348 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash -61176310, now seen corresponding path program 34 times [2022-02-15 11:29:49,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:49,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223228881] [2022-02-15 11:29:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:49,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:49,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:49,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223228881] [2022-02-15 11:29:49,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223228881] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:49,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:49,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:49,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531353426] [2022-02-15 11:29:49,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:49,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:49,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:49,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:49,464 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) [2022-02-15 11:29:50,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:50,039 INFO L93 Difference]: Finished difference Result 8994 states and 23734 transitions. [2022-02-15 11:29:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:50,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:50,051 INFO L225 Difference]: With dead ends: 8994 [2022-02-15 11:29:50,051 INFO L226 Difference]: Without dead ends: 8474 [2022-02-15 11:29:50,051 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 [2022-02-15 11:29:50,052 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 [2022-02-15 11:29:50,052 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] [2022-02-15 11:29:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2022-02-15 11:29:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7706. [2022-02-15 11:29:50,145 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) [2022-02-15 11:29:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-15 11:29:50,158 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-15 11:29:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:50,158 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-15 11:29:50,158 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) [2022-02-15 11:29:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-15 11:29:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:50,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:50,166 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] [2022-02-15 11:29:50,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-02-15 11:29:50,167 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:50,167 INFO L85 PathProgramCache]: Analyzing trace with hash -586311846, now seen corresponding path program 35 times [2022-02-15 11:29:50,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:50,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240540639] [2022-02-15 11:29:50,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:50,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:50,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:50,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240540639] [2022-02-15 11:29:50,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240540639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:50,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:50,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:50,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990887799] [2022-02-15 11:29:50,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:50,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:50,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:50,304 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) [2022-02-15 11:29:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:51,080 INFO L93 Difference]: Finished difference Result 9030 states and 23829 transitions. [2022-02-15 11:29:51,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:29:51,080 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:51,092 INFO L225 Difference]: With dead ends: 9030 [2022-02-15 11:29:51,093 INFO L226 Difference]: Without dead ends: 8470 [2022-02-15 11:29:51,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:29:51,093 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 339 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2953 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 [2022-02-15 11:29:51,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 2953 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-15 11:29:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7702. [2022-02-15 11:29:51,188 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) [2022-02-15 11:29:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-02-15 11:29:51,201 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-02-15 11:29:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:51,201 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-02-15 11:29:51,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-02-15 11:29:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:51,211 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:51,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:51,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-02-15 11:29:51,211 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash 65981420, now seen corresponding path program 36 times [2022-02-15 11:29:51,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:51,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721086823] [2022-02-15 11:29:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:51,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:51,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:51,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721086823] [2022-02-15 11:29:51,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721086823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:51,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:51,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:51,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251913451] [2022-02-15 11:29:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:51,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:51,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:51,331 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) [2022-02-15 11:29:52,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:52,118 INFO L93 Difference]: Finished difference Result 9238 states and 24361 transitions. [2022-02-15 11:29:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 11:29:52,119 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:52,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:52,132 INFO L225 Difference]: With dead ends: 9238 [2022-02-15 11:29:52,132 INFO L226 Difference]: Without dead ends: 8634 [2022-02-15 11:29:52,133 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 [2022-02-15 11:29:52,133 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 [2022-02-15 11:29:52,133 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] [2022-02-15 11:29:52,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-02-15 11:29:52,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 7694. [2022-02-15 11:29:52,235 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) [2022-02-15 11:29:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-02-15 11:29:52,249 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-02-15 11:29:52,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:52,249 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-02-15 11:29:52,249 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) [2022-02-15 11:29:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-02-15 11:29:52,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:52,258 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:52,259 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] [2022-02-15 11:29:52,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-02-15 11:29:52,259 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:52,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:52,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824410, now seen corresponding path program 37 times [2022-02-15 11:29:52,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:52,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796151872] [2022-02-15 11:29:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:52,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:52,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:52,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796151872] [2022-02-15 11:29:52,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796151872] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:52,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:52,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:52,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784870799] [2022-02-15 11:29:52,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:52,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:52,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:52,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:52,377 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) [2022-02-15 11:29:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:52,843 INFO L93 Difference]: Finished difference Result 8956 states and 23629 transitions. [2022-02-15 11:29:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:29:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:52,855 INFO L225 Difference]: With dead ends: 8956 [2022-02-15 11:29:52,855 INFO L226 Difference]: Without dead ends: 8477 [2022-02-15 11:29:52,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:29:52,856 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 221 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2399 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 [2022-02-15 11:29:52,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2399 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:52,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2022-02-15 11:29:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 7714. [2022-02-15 11:29:52,944 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) [2022-02-15 11:29:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-15 11:29:52,957 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-15 11:29:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:52,957 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-15 11:29:52,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-15 11:29:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:52,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:52,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:52,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-02-15 11:29:52,966 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:52,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash -971619768, now seen corresponding path program 38 times [2022-02-15 11:29:52,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:52,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643764672] [2022-02-15 11:29:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:52,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:53,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:53,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643764672] [2022-02-15 11:29:53,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643764672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:53,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:53,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:53,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793520613] [2022-02-15 11:29:53,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:53,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:53,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:53,099 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) [2022-02-15 11:29:53,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:53,582 INFO L93 Difference]: Finished difference Result 8922 states and 23540 transitions. [2022-02-15 11:29:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:53,582 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 [2022-02-15 11:29:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:53,593 INFO L225 Difference]: With dead ends: 8922 [2022-02-15 11:29:53,594 INFO L226 Difference]: Without dead ends: 8442 [2022-02-15 11:29:53,594 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 [2022-02-15 11:29:53,594 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:29:53,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2626 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-02-15 11:29:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7710. [2022-02-15 11:29:53,684 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) [2022-02-15 11:29:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-15 11:29:53,696 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-15 11:29:53,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:53,697 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-15 11:29:53,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-15 11:29:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:53,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:53,705 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] [2022-02-15 11:29:53,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-02-15 11:29:53,705 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:53,706 INFO L85 PathProgramCache]: Analyzing trace with hash -2092677108, now seen corresponding path program 39 times [2022-02-15 11:29:53,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:53,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414338958] [2022-02-15 11:29:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:53,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:53,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:53,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414338958] [2022-02-15 11:29:53,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414338958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:53,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:53,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:53,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023180670] [2022-02-15 11:29:53,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:53,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:53,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:53,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:53,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:53,820 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) [2022-02-15 11:29:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:54,410 INFO L93 Difference]: Finished difference Result 8958 states and 23635 transitions. [2022-02-15 11:29:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:29:54,411 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 [2022-02-15 11:29:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:54,422 INFO L225 Difference]: With dead ends: 8958 [2022-02-15 11:29:54,422 INFO L226 Difference]: Without dead ends: 8438 [2022-02-15 11:29:54,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:29:54,423 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 289 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2707 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 [2022-02-15 11:29:54,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2707 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:54,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-02-15 11:29:54,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7706. [2022-02-15 11:29:54,510 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) [2022-02-15 11:29:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-15 11:29:54,522 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-15 11:29:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:54,522 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-15 11:29:54,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-15 11:29:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:54,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:54,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:54,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-02-15 11:29:54,531 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1677154652, now seen corresponding path program 40 times [2022-02-15 11:29:54,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:54,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346391776] [2022-02-15 11:29:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:54,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:54,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:54,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346391776] [2022-02-15 11:29:54,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346391776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:54,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:54,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:54,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100038928] [2022-02-15 11:29:54,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:54,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:54,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:54,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:54,645 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) [2022-02-15 11:29:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:55,309 INFO L93 Difference]: Finished difference Result 9102 states and 24003 transitions. [2022-02-15 11:29:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:29:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:55,322 INFO L225 Difference]: With dead ends: 9102 [2022-02-15 11:29:55,322 INFO L226 Difference]: Without dead ends: 8542 [2022-02-15 11:29:55,323 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 [2022-02-15 11:29:55,323 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 362 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2740 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 [2022-02-15 11:29:55,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2740 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:55,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-02-15 11:29:55,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 7702. [2022-02-15 11:29:55,420 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) [2022-02-15 11:29:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-02-15 11:29:55,434 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-02-15 11:29:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:55,434 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-02-15 11:29:55,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-02-15 11:29:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:55,473 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:55,473 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] [2022-02-15 11:29:55,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-02-15 11:29:55,474 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:55,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1486841248, now seen corresponding path program 41 times [2022-02-15 11:29:55,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:55,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083338344] [2022-02-15 11:29:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:55,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:55,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:55,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083338344] [2022-02-15 11:29:55,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083338344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:55,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:55,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:55,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175915402] [2022-02-15 11:29:55,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:55,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:55,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:55,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:55,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:55,599 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) [2022-02-15 11:29:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:56,054 INFO L93 Difference]: Finished difference Result 9028 states and 23823 transitions. [2022-02-15 11:29:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:56,067 INFO L225 Difference]: With dead ends: 9028 [2022-02-15 11:29:56,067 INFO L226 Difference]: Without dead ends: 8549 [2022-02-15 11:29:56,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:29:56,068 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 236 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2337 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 [2022-02-15 11:29:56,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2337 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:56,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-02-15 11:29:56,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7714. [2022-02-15 11:29:56,171 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) [2022-02-15 11:29:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-02-15 11:29:56,184 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-02-15 11:29:56,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:56,184 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-02-15 11:29:56,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:56,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-02-15 11:29:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:56,193 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:56,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:56,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-02-15 11:29:56,193 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:56,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1180602930, now seen corresponding path program 42 times [2022-02-15 11:29:56,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:56,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975944904] [2022-02-15 11:29:56,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:56,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:56,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:56,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975944904] [2022-02-15 11:29:56,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975944904] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:56,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:56,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:56,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292426785] [2022-02-15 11:29:56,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:56,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:56,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:56,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:56,306 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) [2022-02-15 11:29:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:56,764 INFO L93 Difference]: Finished difference Result 8986 states and 23712 transitions. [2022-02-15 11:29:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:56,764 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 [2022-02-15 11:29:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:56,777 INFO L225 Difference]: With dead ends: 8986 [2022-02-15 11:29:56,777 INFO L226 Difference]: Without dead ends: 8506 [2022-02-15 11:29:56,777 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 [2022-02-15 11:29:56,778 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 [2022-02-15 11:29:56,778 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] [2022-02-15 11:29:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2022-02-15 11:29:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7710. [2022-02-15 11:29:56,880 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) [2022-02-15 11:29:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-15 11:29:56,894 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-15 11:29:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:56,894 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-15 11:29:56,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-15 11:29:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:56,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:56,904 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:56,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-02-15 11:29:56,904 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:56,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1993307026, now seen corresponding path program 43 times [2022-02-15 11:29:56,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:56,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450047657] [2022-02-15 11:29:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:56,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:57,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:57,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450047657] [2022-02-15 11:29:57,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450047657] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:57,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:57,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:57,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674061977] [2022-02-15 11:29:57,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:57,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:57,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:57,020 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) [2022-02-15 11:29:57,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:57,559 INFO L93 Difference]: Finished difference Result 9114 states and 24044 transitions. [2022-02-15 11:29:57,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:29:57,559 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:57,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:57,571 INFO L225 Difference]: With dead ends: 9114 [2022-02-15 11:29:57,571 INFO L226 Difference]: Without dead ends: 8594 [2022-02-15 11:29:57,571 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 [2022-02-15 11:29:57,572 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 317 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 2656 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 [2022-02-15 11:29:57,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 2656 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-02-15 11:29:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7706. [2022-02-15 11:29:57,663 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) [2022-02-15 11:29:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-02-15 11:29:57,676 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-02-15 11:29:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:57,677 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-02-15 11:29:57,677 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) [2022-02-15 11:29:57,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-02-15 11:29:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:57,685 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:57,686 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] [2022-02-15 11:29:57,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-02-15 11:29:57,686 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2065936750, now seen corresponding path program 44 times [2022-02-15 11:29:57,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:57,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141959775] [2022-02-15 11:29:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:57,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:57,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:57,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141959775] [2022-02-15 11:29:57,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141959775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:57,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:57,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:57,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167687778] [2022-02-15 11:29:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:57,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:57,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:57,827 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) [2022-02-15 11:29:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:58,470 INFO L93 Difference]: Finished difference Result 9116 states and 24036 transitions. [2022-02-15 11:29:58,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:29:58,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:58,483 INFO L225 Difference]: With dead ends: 9116 [2022-02-15 11:29:58,483 INFO L226 Difference]: Without dead ends: 8594 [2022-02-15 11:29:58,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:29:58,484 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 286 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2642 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 [2022-02-15 11:29:58,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 2642 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:58,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-02-15 11:29:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7710. [2022-02-15 11:29:58,583 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) [2022-02-15 11:29:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-02-15 11:29:58,597 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-02-15 11:29:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:58,597 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-02-15 11:29:58,597 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) [2022-02-15 11:29:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-02-15 11:29:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:58,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:58,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:58,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-02-15 11:29:58,606 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash 508021400, now seen corresponding path program 45 times [2022-02-15 11:29:58,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:58,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044694180] [2022-02-15 11:29:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:58,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:58,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:58,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044694180] [2022-02-15 11:29:58,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044694180] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:58,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:58,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:58,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005194945] [2022-02-15 11:29:58,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:58,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:58,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:58,722 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) [2022-02-15 11:29:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:59,208 INFO L93 Difference]: Finished difference Result 8968 states and 23650 transitions. [2022-02-15 11:29:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:29:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:29:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:59,220 INFO L225 Difference]: With dead ends: 8968 [2022-02-15 11:29:59,220 INFO L226 Difference]: Without dead ends: 8489 [2022-02-15 11:29:59,221 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 [2022-02-15 11:29:59,221 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 235 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2396 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 [2022-02-15 11:29:59,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2396 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:59,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-02-15 11:29:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7714. [2022-02-15 11:29:59,311 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) [2022-02-15 11:29:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-02-15 11:29:59,324 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-02-15 11:29:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:29:59,324 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-02-15 11:29:59,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:29:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-02-15 11:29:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:29:59,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:29:59,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:29:59,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-02-15 11:29:59,333 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:29:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:29:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2135544518, now seen corresponding path program 46 times [2022-02-15 11:29:59,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:29:59,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151347315] [2022-02-15 11:29:59,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:29:59,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:29:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:29:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:29:59,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:29:59,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151347315] [2022-02-15 11:29:59,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151347315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:29:59,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:29:59,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:29:59,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911024802] [2022-02-15 11:29:59,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:29:59,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:29:59,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:29:59,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:29:59,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:29:59,446 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) [2022-02-15 11:29:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:29:59,891 INFO L93 Difference]: Finished difference Result 8886 states and 23429 transitions. [2022-02-15 11:29:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:29:59,891 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 [2022-02-15 11:29:59,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:29:59,903 INFO L225 Difference]: With dead ends: 8886 [2022-02-15 11:29:59,903 INFO L226 Difference]: Without dead ends: 8394 [2022-02-15 11:29:59,903 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 [2022-02-15 11:29:59,903 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 216 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2763 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 [2022-02-15 11:29:59,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2763 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:29:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-02-15 11:29:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 7698. [2022-02-15 11:29:59,997 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) [2022-02-15 11:30:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-15 11:30:00,012 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-15 11:30:00,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:00,012 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-15 11:30:00,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:00,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-15 11:30:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:00,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:00,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:00,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-02-15 11:30:00,021 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1438805144, now seen corresponding path program 47 times [2022-02-15 11:30:00,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:00,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596425667] [2022-02-15 11:30:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:00,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:00,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:00,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596425667] [2022-02-15 11:30:00,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596425667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:00,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:00,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:00,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339548590] [2022-02-15 11:30:00,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:00,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:00,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:00,137 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) [2022-02-15 11:30:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:00,580 INFO L93 Difference]: Finished difference Result 8924 states and 23537 transitions. [2022-02-15 11:30:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:00,580 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 [2022-02-15 11:30:00,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:00,591 INFO L225 Difference]: With dead ends: 8924 [2022-02-15 11:30:00,591 INFO L226 Difference]: Without dead ends: 8445 [2022-02-15 11:30:00,592 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 [2022-02-15 11:30:00,592 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 239 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2326 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 [2022-02-15 11:30:00,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2326 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-02-15 11:30:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-02-15 11:30:00,679 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) [2022-02-15 11:30:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-02-15 11:30:00,692 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-02-15 11:30:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:00,692 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-02-15 11:30:00,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-02-15 11:30:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:00,700 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:00,700 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] [2022-02-15 11:30:00,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-02-15 11:30:00,700 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1228639034, now seen corresponding path program 48 times [2022-02-15 11:30:00,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:00,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807552572] [2022-02-15 11:30:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:00,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:00,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:00,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807552572] [2022-02-15 11:30:00,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807552572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:00,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:00,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:00,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712948393] [2022-02-15 11:30:00,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:00,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:00,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:00,814 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) [2022-02-15 11:30:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:01,273 INFO L93 Difference]: Finished difference Result 8882 states and 23426 transitions. [2022-02-15 11:30:01,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:01,274 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 [2022-02-15 11:30:01,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:01,285 INFO L225 Difference]: With dead ends: 8882 [2022-02-15 11:30:01,285 INFO L226 Difference]: Without dead ends: 8402 [2022-02-15 11:30:01,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:30:01,285 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 231 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2584 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 [2022-02-15 11:30:01,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2584 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-02-15 11:30:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 7710. [2022-02-15 11:30:01,378 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) [2022-02-15 11:30:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-15 11:30:01,392 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-15 11:30:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:01,392 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-15 11:30:01,392 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) [2022-02-15 11:30:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-15 11:30:01,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:01,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:01,401 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] [2022-02-15 11:30:01,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-02-15 11:30:01,401 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:01,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1945270922, now seen corresponding path program 49 times [2022-02-15 11:30:01,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:01,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750365824] [2022-02-15 11:30:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:01,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:01,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:01,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750365824] [2022-02-15 11:30:01,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750365824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:01,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:01,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:01,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545377160] [2022-02-15 11:30:01,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:01,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:01,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:01,514 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) [2022-02-15 11:30:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:02,061 INFO L93 Difference]: Finished difference Result 8990 states and 23703 transitions. [2022-02-15 11:30:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:30:02,061 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 [2022-02-15 11:30:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:02,073 INFO L225 Difference]: With dead ends: 8990 [2022-02-15 11:30:02,073 INFO L226 Difference]: Without dead ends: 8470 [2022-02-15 11:30:02,074 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 [2022-02-15 11:30:02,074 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 304 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2823 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 [2022-02-15 11:30:02,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2823 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-15 11:30:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7706. [2022-02-15 11:30:02,168 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) [2022-02-15 11:30:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-02-15 11:30:02,181 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-02-15 11:30:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:02,181 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-02-15 11:30:02,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-02-15 11:30:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:02,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:02,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:02,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-02-15 11:30:02,190 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:02,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:02,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2017900646, now seen corresponding path program 50 times [2022-02-15 11:30:02,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:02,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540484819] [2022-02-15 11:30:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:02,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:02,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:02,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540484819] [2022-02-15 11:30:02,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540484819] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:02,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:02,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:02,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709293199] [2022-02-15 11:30:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:02,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:02,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:02,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:02,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:02,303 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) [2022-02-15 11:30:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:02,913 INFO L93 Difference]: Finished difference Result 9088 states and 23959 transitions. [2022-02-15 11:30:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:02,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:02,925 INFO L225 Difference]: With dead ends: 9088 [2022-02-15 11:30:02,925 INFO L226 Difference]: Without dead ends: 8566 [2022-02-15 11:30:02,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:30:02,926 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 330 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3007 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 [2022-02-15 11:30:02,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 3007 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:02,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-02-15 11:30:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7710. [2022-02-15 11:30:03,019 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) [2022-02-15 11:30:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-02-15 11:30:03,032 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-02-15 11:30:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:03,032 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-02-15 11:30:03,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-02-15 11:30:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:03,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:03,041 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] [2022-02-15 11:30:03,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-02-15 11:30:03,041 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:03,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash 459985296, now seen corresponding path program 51 times [2022-02-15 11:30:03,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:03,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919319391] [2022-02-15 11:30:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:03,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:03,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:03,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919319391] [2022-02-15 11:30:03,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919319391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:03,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:03,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:03,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847919456] [2022-02-15 11:30:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:03,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:03,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:03,160 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) [2022-02-15 11:30:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:03,635 INFO L93 Difference]: Finished difference Result 8924 states and 23529 transitions. [2022-02-15 11:30:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:03,646 INFO L225 Difference]: With dead ends: 8924 [2022-02-15 11:30:03,647 INFO L226 Difference]: Without dead ends: 8445 [2022-02-15 11:30:03,647 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 [2022-02-15 11:30:03,647 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 268 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:03,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1982 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-02-15 11:30:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-02-15 11:30:03,735 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) [2022-02-15 11:30:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-02-15 11:30:03,747 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-02-15 11:30:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:03,747 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-02-15 11:30:03,747 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) [2022-02-15 11:30:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-02-15 11:30:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:03,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:03,755 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] [2022-02-15 11:30:03,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-02-15 11:30:03,755 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2087508414, now seen corresponding path program 52 times [2022-02-15 11:30:03,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:03,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734520044] [2022-02-15 11:30:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:03,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:03,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:03,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734520044] [2022-02-15 11:30:03,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734520044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:03,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:03,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:03,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460710256] [2022-02-15 11:30:03,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:03,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:03,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:03,869 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) [2022-02-15 11:30:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:04,323 INFO L93 Difference]: Finished difference Result 8858 states and 23352 transitions. [2022-02-15 11:30:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:04,336 INFO L225 Difference]: With dead ends: 8858 [2022-02-15 11:30:04,336 INFO L226 Difference]: Without dead ends: 8370 [2022-02-15 11:30:04,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:04,337 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 242 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2544 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 [2022-02-15 11:30:04,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2544 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:04,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-02-15 11:30:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7702. [2022-02-15 11:30:04,425 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) [2022-02-15 11:30:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20351 transitions. [2022-02-15 11:30:04,436 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20351 transitions. Word has length 109 [2022-02-15 11:30:04,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:04,437 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20351 transitions. [2022-02-15 11:30:04,437 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) [2022-02-15 11:30:04,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20351 transitions. [2022-02-15 11:30:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:04,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:04,445 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] [2022-02-15 11:30:04,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-02-15 11:30:04,445 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:04,445 INFO L85 PathProgramCache]: Analyzing trace with hash 805164314, now seen corresponding path program 53 times [2022-02-15 11:30:04,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:04,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361276635] [2022-02-15 11:30:04,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:04,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:04,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:04,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361276635] [2022-02-15 11:30:04,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361276635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:04,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:04,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:04,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205889211] [2022-02-15 11:30:04,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:04,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:04,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:04,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:04,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:04,561 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) [2022-02-15 11:30:05,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:05,275 INFO L93 Difference]: Finished difference Result 9025 states and 23767 transitions. [2022-02-15 11:30:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 11:30:05,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:05,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:05,288 INFO L225 Difference]: With dead ends: 9025 [2022-02-15 11:30:05,288 INFO L226 Difference]: Without dead ends: 8460 [2022-02-15 11:30:05,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 11:30:05,289 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 389 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2598 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 [2022-02-15 11:30:05,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2598 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-02-15 11:30:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7706. [2022-02-15 11:30:05,393 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) [2022-02-15 11:30:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20358 transitions. [2022-02-15 11:30:05,407 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20358 transitions. Word has length 109 [2022-02-15 11:30:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20358 transitions. [2022-02-15 11:30:05,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20358 transitions. [2022-02-15 11:30:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:05,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:05,417 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] [2022-02-15 11:30:05,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-02-15 11:30:05,418 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1669595376, now seen corresponding path program 54 times [2022-02-15 11:30:05,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:05,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296244911] [2022-02-15 11:30:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:05,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:05,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:05,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296244911] [2022-02-15 11:30:05,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296244911] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:05,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:05,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:05,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246602839] [2022-02-15 11:30:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:05,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:05,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:05,588 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) [2022-02-15 11:30:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:06,205 INFO L93 Difference]: Finished difference Result 8920 states and 23493 transitions. [2022-02-15 11:30:06,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:06,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:06,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:06,218 INFO L225 Difference]: With dead ends: 8920 [2022-02-15 11:30:06,218 INFO L226 Difference]: Without dead ends: 8398 [2022-02-15 11:30:06,219 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 [2022-02-15 11:30:06,219 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 344 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2327 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 [2022-02-15 11:30:06,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 2327 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-02-15 11:30:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 7710. [2022-02-15 11:30:06,317 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) [2022-02-15 11:30:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20365 transitions. [2022-02-15 11:30:06,331 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20365 transitions. Word has length 109 [2022-02-15 11:30:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:06,331 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20365 transitions. [2022-02-15 11:30:06,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20365 transitions. [2022-02-15 11:30:06,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:06,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:06,340 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] [2022-02-15 11:30:06,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-02-15 11:30:06,340 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash 111680026, now seen corresponding path program 55 times [2022-02-15 11:30:06,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:06,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064333999] [2022-02-15 11:30:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:06,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:06,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:06,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064333999] [2022-02-15 11:30:06,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064333999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:06,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:06,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:06,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263516671] [2022-02-15 11:30:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:06,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:06,455 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) [2022-02-15 11:30:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:06,909 INFO L93 Difference]: Finished difference Result 8796 states and 23173 transitions. [2022-02-15 11:30:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:06,909 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:06,920 INFO L225 Difference]: With dead ends: 8796 [2022-02-15 11:30:06,920 INFO L226 Difference]: Without dead ends: 8317 [2022-02-15 11:30:06,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1116, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:30:06,921 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 [2022-02-15 11:30:06,921 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] [2022-02-15 11:30:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-02-15 11:30:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 7714. [2022-02-15 11:30:07,009 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) [2022-02-15 11:30:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20372 transitions. [2022-02-15 11:30:07,022 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20372 transitions. Word has length 109 [2022-02-15 11:30:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:07,022 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20372 transitions. [2022-02-15 11:30:07,022 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) [2022-02-15 11:30:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20372 transitions. [2022-02-15 11:30:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:07,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:07,031 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] [2022-02-15 11:30:07,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-02-15 11:30:07,031 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1739203144, now seen corresponding path program 56 times [2022-02-15 11:30:07,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:07,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755953044] [2022-02-15 11:30:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:07,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:07,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:07,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755953044] [2022-02-15 11:30:07,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755953044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:07,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:07,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:07,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233269636] [2022-02-15 11:30:07,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:07,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:07,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:07,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:07,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:07,145 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) [2022-02-15 11:30:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:07,560 INFO L93 Difference]: Finished difference Result 8662 states and 22809 transitions. [2022-02-15 11:30:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:07,560 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 [2022-02-15 11:30:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:07,572 INFO L225 Difference]: With dead ends: 8662 [2022-02-15 11:30:07,572 INFO L226 Difference]: Without dead ends: 8142 [2022-02-15 11:30:07,572 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 [2022-02-15 11:30:07,572 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 222 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:07,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2696 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-02-15 11:30:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 7670. [2022-02-15 11:30:07,666 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) [2022-02-15 11:30:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 20275 transitions. [2022-02-15 11:30:07,680 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 20275 transitions. Word has length 109 [2022-02-15 11:30:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:07,680 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 20275 transitions. [2022-02-15 11:30:07,680 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) [2022-02-15 11:30:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 20275 transitions. [2022-02-15 11:30:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:07,689 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:07,689 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] [2022-02-15 11:30:07,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-02-15 11:30:07,689 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:07,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1409171550, now seen corresponding path program 57 times [2022-02-15 11:30:07,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:07,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023826205] [2022-02-15 11:30:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:07,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:07,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:07,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023826205] [2022-02-15 11:30:07,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023826205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:07,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:07,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:07,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626381457] [2022-02-15 11:30:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:07,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:07,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:07,823 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) [2022-02-15 11:30:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:08,287 INFO L93 Difference]: Finished difference Result 9236 states and 24403 transitions. [2022-02-15 11:30:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:08,288 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 [2022-02-15 11:30:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:08,300 INFO L225 Difference]: With dead ends: 9236 [2022-02-15 11:30:08,300 INFO L226 Difference]: Without dead ends: 8757 [2022-02-15 11:30:08,300 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 [2022-02-15 11:30:08,300 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 214 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:08,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2715 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-02-15 11:30:08,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 7698. [2022-02-15 11:30:08,398 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) [2022-02-15 11:30:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-02-15 11:30:08,412 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-02-15 11:30:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:08,412 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-02-15 11:30:08,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-02-15 11:30:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:08,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:08,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:08,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-02-15 11:30:08,421 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:08,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash 218351568, now seen corresponding path program 58 times [2022-02-15 11:30:08,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:08,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865318389] [2022-02-15 11:30:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:08,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:08,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:08,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865318389] [2022-02-15 11:30:08,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865318389] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:08,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:08,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:08,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801823903] [2022-02-15 11:30:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:08,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:08,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:08,539 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) [2022-02-15 11:30:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:09,002 INFO L93 Difference]: Finished difference Result 9202 states and 24314 transitions. [2022-02-15 11:30:09,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:09,002 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 [2022-02-15 11:30:09,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:09,014 INFO L225 Difference]: With dead ends: 9202 [2022-02-15 11:30:09,014 INFO L226 Difference]: Without dead ends: 8722 [2022-02-15 11:30:09,015 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 [2022-02-15 11:30:09,015 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 [2022-02-15 11:30:09,015 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] [2022-02-15 11:30:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-02-15 11:30:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7694. [2022-02-15 11:30:09,111 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) [2022-02-15 11:30:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-02-15 11:30:09,124 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-02-15 11:30:09,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:09,125 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-02-15 11:30:09,125 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) [2022-02-15 11:30:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-02-15 11:30:09,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:09,133 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:09,134 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] [2022-02-15 11:30:09,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-02-15 11:30:09,134 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:09,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:09,134 INFO L85 PathProgramCache]: Analyzing trace with hash -902705772, now seen corresponding path program 59 times [2022-02-15 11:30:09,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:09,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813734893] [2022-02-15 11:30:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:09,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:09,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:09,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813734893] [2022-02-15 11:30:09,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813734893] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:09,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:09,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:09,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153848382] [2022-02-15 11:30:09,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:09,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:09,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:09,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:09,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:09,252 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) [2022-02-15 11:30:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:09,833 INFO L93 Difference]: Finished difference Result 9238 states and 24409 transitions. [2022-02-15 11:30:09,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:09,833 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:09,845 INFO L225 Difference]: With dead ends: 9238 [2022-02-15 11:30:09,845 INFO L226 Difference]: Without dead ends: 8718 [2022-02-15 11:30:09,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:30:09,845 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 287 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:09,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 2801 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:30:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-02-15 11:30:09,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7690. [2022-02-15 11:30:09,937 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) [2022-02-15 11:30:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20326 transitions. [2022-02-15 11:30:09,949 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20326 transitions. Word has length 109 [2022-02-15 11:30:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:09,950 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20326 transitions. [2022-02-15 11:30:09,950 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) [2022-02-15 11:30:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20326 transitions. [2022-02-15 11:30:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:09,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:09,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:09,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-02-15 11:30:09,958 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1427841308, now seen corresponding path program 60 times [2022-02-15 11:30:09,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:09,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321134708] [2022-02-15 11:30:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:09,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:10,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:10,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321134708] [2022-02-15 11:30:10,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321134708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:10,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:10,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:10,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939425664] [2022-02-15 11:30:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:10,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:10,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:10,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:10,079 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) [2022-02-15 11:30:10,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:10,764 INFO L93 Difference]: Finished difference Result 9466 states and 25008 transitions. [2022-02-15 11:30:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:30:10,764 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 [2022-02-15 11:30:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:10,775 INFO L225 Difference]: With dead ends: 9466 [2022-02-15 11:30:10,776 INFO L226 Difference]: Without dead ends: 8906 [2022-02-15 11:30:10,776 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 [2022-02-15 11:30:10,776 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 342 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 3027 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 [2022-02-15 11:30:10,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 3027 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:30:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2022-02-15 11:30:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7686. [2022-02-15 11:30:10,864 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) [2022-02-15 11:30:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20315 transitions. [2022-02-15 11:30:10,881 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20315 transitions. Word has length 109 [2022-02-15 11:30:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:10,882 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20315 transitions. [2022-02-15 11:30:10,882 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) [2022-02-15 11:30:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20315 transitions. [2022-02-15 11:30:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:10,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:10,892 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] [2022-02-15 11:30:10,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-02-15 11:30:10,892 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:10,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1618154712, now seen corresponding path program 61 times [2022-02-15 11:30:10,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:10,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145294304] [2022-02-15 11:30:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:10,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:11,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:11,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145294304] [2022-02-15 11:30:11,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145294304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:11,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:11,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:11,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755394040] [2022-02-15 11:30:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:11,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:11,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:11,025 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) [2022-02-15 11:30:11,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:11,517 INFO L93 Difference]: Finished difference Result 9212 states and 24333 transitions. [2022-02-15 11:30:11,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:11,518 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 [2022-02-15 11:30:11,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:11,530 INFO L225 Difference]: With dead ends: 9212 [2022-02-15 11:30:11,530 INFO L226 Difference]: Without dead ends: 8733 [2022-02-15 11:30:11,530 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 [2022-02-15 11:30:11,530 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 217 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:11,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 2718 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-02-15 11:30:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7698. [2022-02-15 11:30:11,623 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) [2022-02-15 11:30:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-15 11:30:11,636 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-15 11:30:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:11,636 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-15 11:30:11,636 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) [2022-02-15 11:30:11,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-15 11:30:11,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:11,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:11,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:11,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-02-15 11:30:11,645 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:11,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:11,645 INFO L85 PathProgramCache]: Analyzing trace with hash 9368406, now seen corresponding path program 62 times [2022-02-15 11:30:11,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:11,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206932557] [2022-02-15 11:30:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:11,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:11,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:11,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206932557] [2022-02-15 11:30:11,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206932557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:11,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:11,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:11,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174079887] [2022-02-15 11:30:11,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:11,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:11,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:11,766 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) [2022-02-15 11:30:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:12,246 INFO L93 Difference]: Finished difference Result 9170 states and 24222 transitions. [2022-02-15 11:30:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:12,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:12,258 INFO L225 Difference]: With dead ends: 9170 [2022-02-15 11:30:12,258 INFO L226 Difference]: Without dead ends: 8690 [2022-02-15 11:30:12,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:12,259 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:12,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2867 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-02-15 11:30:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7694. [2022-02-15 11:30:12,355 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) [2022-02-15 11:30:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-15 11:30:12,368 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-15 11:30:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:12,369 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-15 11:30:12,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:12,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-15 11:30:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:12,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:12,378 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] [2022-02-15 11:30:12,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-02-15 11:30:12,378 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:12,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:12,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1111688934, now seen corresponding path program 63 times [2022-02-15 11:30:12,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:12,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730052712] [2022-02-15 11:30:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:12,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:12,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:12,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730052712] [2022-02-15 11:30:12,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730052712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:12,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:12,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:12,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222575848] [2022-02-15 11:30:12,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:12,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:12,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:12,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:12,499 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) [2022-02-15 11:30:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:13,063 INFO L93 Difference]: Finished difference Result 9338 states and 24664 transitions. [2022-02-15 11:30:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:13,063 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:13,077 INFO L225 Difference]: With dead ends: 9338 [2022-02-15 11:30:13,077 INFO L226 Difference]: Without dead ends: 8818 [2022-02-15 11:30:13,077 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 [2022-02-15 11:30:13,077 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 298 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2778 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 [2022-02-15 11:30:13,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2778 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-02-15 11:30:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7690. [2022-02-15 11:30:13,177 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) [2022-02-15 11:30:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-15 11:30:13,190 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-15 11:30:13,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:13,190 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-15 11:30:13,190 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) [2022-02-15 11:30:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-15 11:30:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:13,203 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:13,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:13,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-02-15 11:30:13,203 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059210, now seen corresponding path program 64 times [2022-02-15 11:30:13,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:13,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003593802] [2022-02-15 11:30:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:13,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:13,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:13,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003593802] [2022-02-15 11:30:13,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003593802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:13,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:13,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:13,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340430921] [2022-02-15 11:30:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:13,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:13,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:13,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:13,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:13,324 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) [2022-02-15 11:30:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:13,886 INFO L93 Difference]: Finished difference Result 9256 states and 24425 transitions. [2022-02-15 11:30:13,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:30:13,886 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:13,898 INFO L225 Difference]: With dead ends: 9256 [2022-02-15 11:30:13,899 INFO L226 Difference]: Without dead ends: 8734 [2022-02-15 11:30:13,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:30:13,899 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 276 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 2798 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 [2022-02-15 11:30:13,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 2798 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-02-15 11:30:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 7694. [2022-02-15 11:30:13,997 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) [2022-02-15 11:30:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:14,010 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:14,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:14,010 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:14,010 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) [2022-02-15 11:30:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:14,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:14,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:14,019 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] [2022-02-15 11:30:14,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-02-15 11:30:14,019 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:14,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:14,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1697992736, now seen corresponding path program 65 times [2022-02-15 11:30:14,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:14,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632696191] [2022-02-15 11:30:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:14,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:14,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:14,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632696191] [2022-02-15 11:30:14,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632696191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:14,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:14,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:14,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20853063] [2022-02-15 11:30:14,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:14,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:14,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:14,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:14,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:14,156 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) [2022-02-15 11:30:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:14,649 INFO L93 Difference]: Finished difference Result 9156 states and 24171 transitions. [2022-02-15 11:30:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:14,662 INFO L225 Difference]: With dead ends: 9156 [2022-02-15 11:30:14,662 INFO L226 Difference]: Without dead ends: 8677 [2022-02-15 11:30:14,662 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 [2022-02-15 11:30:14,663 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 203 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2455 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 [2022-02-15 11:30:14,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2455 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-02-15 11:30:14,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7698. [2022-02-15 11:30:14,765 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) [2022-02-15 11:30:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20336 transitions. [2022-02-15 11:30:14,778 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20336 transitions. Word has length 109 [2022-02-15 11:30:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:14,778 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20336 transitions. [2022-02-15 11:30:14,778 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) [2022-02-15 11:30:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20336 transitions. [2022-02-15 11:30:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:14,787 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:14,787 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] [2022-02-15 11:30:14,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-02-15 11:30:14,787 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -969451442, now seen corresponding path program 66 times [2022-02-15 11:30:14,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:14,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824135128] [2022-02-15 11:30:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:14,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:14,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:14,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824135128] [2022-02-15 11:30:14,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824135128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:14,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:14,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:14,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599105294] [2022-02-15 11:30:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:14,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:14,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:14,911 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) [2022-02-15 11:30:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:15,376 INFO L93 Difference]: Finished difference Result 9106 states and 24038 transitions. [2022-02-15 11:30:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:15,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:15,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:15,388 INFO L225 Difference]: With dead ends: 9106 [2022-02-15 11:30:15,389 INFO L226 Difference]: Without dead ends: 8614 [2022-02-15 11:30:15,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:15,389 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 191 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 2878 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 [2022-02-15 11:30:15,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 2878 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-02-15 11:30:15,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7682. [2022-02-15 11:30:15,487 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) [2022-02-15 11:30:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20304 transitions. [2022-02-15 11:30:15,501 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20304 transitions. Word has length 109 [2022-02-15 11:30:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:15,501 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20304 transitions. [2022-02-15 11:30:15,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20304 transitions. [2022-02-15 11:30:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:15,510 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:15,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:15,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-02-15 11:30:15,510 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:15,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2065231170, now seen corresponding path program 67 times [2022-02-15 11:30:15,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:15,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813495849] [2022-02-15 11:30:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:15,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:15,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:15,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813495849] [2022-02-15 11:30:15,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813495849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:15,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:15,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:15,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286393363] [2022-02-15 11:30:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:15,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:15,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:15,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:15,662 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) [2022-02-15 11:30:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:16,101 INFO L93 Difference]: Finished difference Result 9048 states and 23882 transitions. [2022-02-15 11:30:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:30:16,101 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 [2022-02-15 11:30:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:16,113 INFO L225 Difference]: With dead ends: 9048 [2022-02-15 11:30:16,113 INFO L226 Difference]: Without dead ends: 8569 [2022-02-15 11:30:16,113 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 [2022-02-15 11:30:16,114 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 209 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2500 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 [2022-02-15 11:30:16,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2500 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2022-02-15 11:30:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 7698. [2022-02-15 11:30:16,205 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) [2022-02-15 11:30:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-15 11:30:16,218 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-15 11:30:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:16,218 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-15 11:30:16,219 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) [2022-02-15 11:30:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-15 11:30:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:16,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:16,227 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] [2022-02-15 11:30:16,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-02-15 11:30:16,227 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash -602213008, now seen corresponding path program 68 times [2022-02-15 11:30:16,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:16,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783455849] [2022-02-15 11:30:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:16,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:16,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:16,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783455849] [2022-02-15 11:30:16,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783455849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:16,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:16,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:16,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619658849] [2022-02-15 11:30:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:16,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:16,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:16,347 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) [2022-02-15 11:30:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:16,799 INFO L93 Difference]: Finished difference Result 9018 states and 23804 transitions. [2022-02-15 11:30:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:16,812 INFO L225 Difference]: With dead ends: 9018 [2022-02-15 11:30:16,812 INFO L226 Difference]: Without dead ends: 8538 [2022-02-15 11:30:16,813 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 [2022-02-15 11:30:16,813 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 213 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2726 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 [2022-02-15 11:30:16,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2726 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2022-02-15 11:30:16,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 7694. [2022-02-15 11:30:16,906 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) [2022-02-15 11:30:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-15 11:30:16,919 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-15 11:30:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:16,919 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-15 11:30:16,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-15 11:30:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:16,928 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:16,928 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] [2022-02-15 11:30:16,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-02-15 11:30:16,928 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:16,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1723270348, now seen corresponding path program 69 times [2022-02-15 11:30:16,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:16,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72253530] [2022-02-15 11:30:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:16,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:17,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:17,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72253530] [2022-02-15 11:30:17,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72253530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:17,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:17,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:17,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709153360] [2022-02-15 11:30:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:17,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:17,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:17,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:17,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:17,053 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) [2022-02-15 11:30:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:17,610 INFO L93 Difference]: Finished difference Result 9054 states and 23899 transitions. [2022-02-15 11:30:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:17,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:17,623 INFO L225 Difference]: With dead ends: 9054 [2022-02-15 11:30:17,623 INFO L226 Difference]: Without dead ends: 8534 [2022-02-15 11:30:17,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:30:17,623 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 263 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2980 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 [2022-02-15 11:30:17,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2980 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:17,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-02-15 11:30:17,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7690. [2022-02-15 11:30:17,723 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) [2022-02-15 11:30:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-15 11:30:17,736 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-15 11:30:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:17,736 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-15 11:30:17,736 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) [2022-02-15 11:30:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-15 11:30:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:17,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:17,745 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] [2022-02-15 11:30:17,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-02-15 11:30:17,745 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2046561412, now seen corresponding path program 70 times [2022-02-15 11:30:17,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:17,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761980995] [2022-02-15 11:30:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:17,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:17,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:17,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761980995] [2022-02-15 11:30:17,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761980995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:17,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:17,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:17,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217282276] [2022-02-15 11:30:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:17,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:17,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:17,867 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) [2022-02-15 11:30:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:18,608 INFO L93 Difference]: Finished difference Result 9090 states and 23994 transitions. [2022-02-15 11:30:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:30:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:18,620 INFO L225 Difference]: With dead ends: 9090 [2022-02-15 11:30:18,620 INFO L226 Difference]: Without dead ends: 8530 [2022-02-15 11:30:18,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:30:18,621 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 333 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2664 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 [2022-02-15 11:30:18,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 2664 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-02-15 11:30:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 7686. [2022-02-15 11:30:18,719 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) [2022-02-15 11:30:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-15 11:30:18,732 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-15 11:30:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:18,732 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-15 11:30:18,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-15 11:30:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:18,741 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:18,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:18,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-02-15 11:30:18,741 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1596112618, now seen corresponding path program 71 times [2022-02-15 11:30:18,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:18,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543011234] [2022-02-15 11:30:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:18,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:18,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:18,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543011234] [2022-02-15 11:30:18,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543011234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:18,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:18,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:18,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050076855] [2022-02-15 11:30:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:18,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:18,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:18,860 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) [2022-02-15 11:30:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:19,603 INFO L93 Difference]: Finished difference Result 9258 states and 24416 transitions. [2022-02-15 11:30:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 11:30:19,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:19,615 INFO L225 Difference]: With dead ends: 9258 [2022-02-15 11:30:19,615 INFO L226 Difference]: Without dead ends: 8654 [2022-02-15 11:30:19,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-15 11:30:19,616 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 [2022-02-15 11:30:19,616 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] [2022-02-15 11:30:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-02-15 11:30:19,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7678. [2022-02-15 11:30:19,705 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) [2022-02-15 11:30:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20293 transitions. [2022-02-15 11:30:19,717 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20293 transitions. Word has length 109 [2022-02-15 11:30:19,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:19,717 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20293 transitions. [2022-02-15 11:30:19,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:19,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20293 transitions. [2022-02-15 11:30:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:19,726 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:19,726 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] [2022-02-15 11:30:19,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-02-15 11:30:19,726 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:19,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:19,726 INFO L85 PathProgramCache]: Analyzing trace with hash 33730372, now seen corresponding path program 72 times [2022-02-15 11:30:19,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:19,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417218532] [2022-02-15 11:30:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:19,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:19,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:19,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417218532] [2022-02-15 11:30:19,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417218532] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:19,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:19,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:19,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574404389] [2022-02-15 11:30:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:19,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:19,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:19,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:19,878 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) [2022-02-15 11:30:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:20,337 INFO L93 Difference]: Finished difference Result 9208 states and 24322 transitions. [2022-02-15 11:30:20,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:20,338 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 [2022-02-15 11:30:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:20,349 INFO L225 Difference]: With dead ends: 9208 [2022-02-15 11:30:20,350 INFO L226 Difference]: Without dead ends: 8729 [2022-02-15 11:30:20,350 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 [2022-02-15 11:30:20,350 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 211 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2659 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 [2022-02-15 11:30:20,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2659 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:20,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8729 states. [2022-02-15 11:30:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8729 to 7698. [2022-02-15 11:30:20,446 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) [2022-02-15 11:30:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-15 11:30:20,459 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-15 11:30:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:20,459 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-15 11:30:20,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-15 11:30:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:20,468 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:20,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:20,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-02-15 11:30:20,468 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:20,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:20,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1661253490, now seen corresponding path program 73 times [2022-02-15 11:30:20,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:20,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067856300] [2022-02-15 11:30:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:20,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:20,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:20,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067856300] [2022-02-15 11:30:20,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067856300] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:20,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:20,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:20,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666074288] [2022-02-15 11:30:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:20,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:20,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:20,586 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) [2022-02-15 11:30:21,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:21,060 INFO L93 Difference]: Finished difference Result 9174 states and 24233 transitions. [2022-02-15 11:30:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:21,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:21,072 INFO L225 Difference]: With dead ends: 9174 [2022-02-15 11:30:21,072 INFO L226 Difference]: Without dead ends: 8694 [2022-02-15 11:30:21,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:21,073 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 [2022-02-15 11:30:21,073 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] [2022-02-15 11:30:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2022-02-15 11:30:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 7694. [2022-02-15 11:30:21,168 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) [2022-02-15 11:30:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-15 11:30:21,181 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-15 11:30:21,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:21,181 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-15 11:30:21,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-15 11:30:21,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:21,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:21,189 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] [2022-02-15 11:30:21,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-02-15 11:30:21,190 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash 540196150, now seen corresponding path program 74 times [2022-02-15 11:30:21,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:21,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410965684] [2022-02-15 11:30:21,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:21,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:21,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:21,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410965684] [2022-02-15 11:30:21,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410965684] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:21,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:21,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:21,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003727977] [2022-02-15 11:30:21,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:21,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:21,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:21,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:21,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:21,309 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) [2022-02-15 11:30:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:21,893 INFO L93 Difference]: Finished difference Result 9210 states and 24328 transitions. [2022-02-15 11:30:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:21,893 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:21,905 INFO L225 Difference]: With dead ends: 9210 [2022-02-15 11:30:21,905 INFO L226 Difference]: Without dead ends: 8690 [2022-02-15 11:30:21,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:30:21,906 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 278 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 2978 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 [2022-02-15 11:30:21,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 2978 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-02-15 11:30:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7690. [2022-02-15 11:30:22,000 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) [2022-02-15 11:30:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-15 11:30:22,013 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-15 11:30:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:22,014 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-15 11:30:22,014 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) [2022-02-15 11:30:22,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-15 11:30:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:22,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:22,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:22,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-02-15 11:30:22,023 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:22,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash 15060614, now seen corresponding path program 75 times [2022-02-15 11:30:22,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:22,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535571556] [2022-02-15 11:30:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:22,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:22,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:22,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:22,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535571556] [2022-02-15 11:30:22,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535571556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:22,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:22,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:22,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102137405] [2022-02-15 11:30:22,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:22,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:22,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:22,166 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) [2022-02-15 11:30:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:22,859 INFO L93 Difference]: Finished difference Result 9354 states and 24696 transitions. [2022-02-15 11:30:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:30:22,859 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 [2022-02-15 11:30:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:22,871 INFO L225 Difference]: With dead ends: 9354 [2022-02-15 11:30:22,872 INFO L226 Difference]: Without dead ends: 8794 [2022-02-15 11:30:22,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 11:30:22,872 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 358 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:22,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2849 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:30:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2022-02-15 11:30:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 7686. [2022-02-15 11:30:22,965 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) [2022-02-15 11:30:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-15 11:30:22,978 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-15 11:30:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:22,978 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-15 11:30:22,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:22,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-15 11:30:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:22,987 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:22,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:22,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-02-15 11:30:22,987 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash -175252790, now seen corresponding path program 76 times [2022-02-15 11:30:22,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:22,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967074922] [2022-02-15 11:30:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:22,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:23,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:23,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967074922] [2022-02-15 11:30:23,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967074922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:23,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:23,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:23,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215912339] [2022-02-15 11:30:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:23,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:23,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:23,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:23,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:23,111 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) [2022-02-15 11:30:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:23,608 INFO L93 Difference]: Finished difference Result 9280 states and 24516 transitions. [2022-02-15 11:30:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:23,621 INFO L225 Difference]: With dead ends: 9280 [2022-02-15 11:30:23,621 INFO L226 Difference]: Without dead ends: 8801 [2022-02-15 11:30:23,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:23,622 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 215 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 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 [2022-02-15 11:30:23,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2894 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-02-15 11:30:23,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 7698. [2022-02-15 11:30:23,718 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) [2022-02-15 11:30:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-15 11:30:23,732 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-15 11:30:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:23,732 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-15 11:30:23,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-15 11:30:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:23,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:23,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:23,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-02-15 11:30:23,741 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:23,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:23,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1452270328, now seen corresponding path program 77 times [2022-02-15 11:30:23,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:23,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877986328] [2022-02-15 11:30:23,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:23,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:23,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:23,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877986328] [2022-02-15 11:30:23,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877986328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:23,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:23,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:23,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136547361] [2022-02-15 11:30:23,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:23,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:23,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:23,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:23,864 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) [2022-02-15 11:30:24,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:24,341 INFO L93 Difference]: Finished difference Result 9238 states and 24405 transitions. [2022-02-15 11:30:24,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:24,352 INFO L225 Difference]: With dead ends: 9238 [2022-02-15 11:30:24,352 INFO L226 Difference]: Without dead ends: 8758 [2022-02-15 11:30:24,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:24,353 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 215 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2460 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 [2022-02-15 11:30:24,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2460 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:24,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-02-15 11:30:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7694. [2022-02-15 11:30:24,444 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) [2022-02-15 11:30:24,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:24,457 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:24,457 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:24,457 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) [2022-02-15 11:30:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:24,465 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:24,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:24,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-02-15 11:30:24,466 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:24,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:24,466 INFO L85 PathProgramCache]: Analyzing trace with hash 331212988, now seen corresponding path program 78 times [2022-02-15 11:30:24,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:24,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984796806] [2022-02-15 11:30:24,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:24,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:24,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:24,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984796806] [2022-02-15 11:30:24,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984796806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:24,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:24,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:24,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595328768] [2022-02-15 11:30:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:24,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:24,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:24,592 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) [2022-02-15 11:30:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:25,180 INFO L93 Difference]: Finished difference Result 9366 states and 24737 transitions. [2022-02-15 11:30:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:25,192 INFO L225 Difference]: With dead ends: 9366 [2022-02-15 11:30:25,192 INFO L226 Difference]: Without dead ends: 8846 [2022-02-15 11:30:25,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:30:25,193 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:25,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2964 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:30:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-15 11:30:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7690. [2022-02-15 11:30:25,285 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) [2022-02-15 11:30:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-15 11:30:25,298 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-15 11:30:25,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:25,298 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-15 11:30:25,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-15 11:30:25,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:25,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:25,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:25,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-02-15 11:30:25,308 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 403842712, now seen corresponding path program 79 times [2022-02-15 11:30:25,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:25,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975527321] [2022-02-15 11:30:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:25,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:25,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:25,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975527321] [2022-02-15 11:30:25,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975527321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:25,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:25,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:25,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727300648] [2022-02-15 11:30:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:25,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:25,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:25,429 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) [2022-02-15 11:30:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:26,025 INFO L93 Difference]: Finished difference Result 9368 states and 24729 transitions. [2022-02-15 11:30:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:30:26,025 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 [2022-02-15 11:30:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:26,037 INFO L225 Difference]: With dead ends: 9368 [2022-02-15 11:30:26,037 INFO L226 Difference]: Without dead ends: 8846 [2022-02-15 11:30:26,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:30:26,038 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 271 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2989 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 [2022-02-15 11:30:26,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 2989 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:30:26,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-15 11:30:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7694. [2022-02-15 11:30:26,164 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) [2022-02-15 11:30:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-15 11:30:26,177 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-15 11:30:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:26,177 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-15 11:30:26,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:26,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-15 11:30:26,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:26,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:26,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:26,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-02-15 11:30:26,187 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:26,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1154072638, now seen corresponding path program 80 times [2022-02-15 11:30:26,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:26,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643942691] [2022-02-15 11:30:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:26,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:26,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:26,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643942691] [2022-02-15 11:30:26,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643942691] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:26,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:26,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:26,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907696873] [2022-02-15 11:30:26,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:26,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:26,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:26,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:26,309 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) [2022-02-15 11:30:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:26,777 INFO L93 Difference]: Finished difference Result 9220 states and 24343 transitions. [2022-02-15 11:30:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:26,778 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 [2022-02-15 11:30:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:26,790 INFO L225 Difference]: With dead ends: 9220 [2022-02-15 11:30:26,790 INFO L226 Difference]: Without dead ends: 8741 [2022-02-15 11:30:26,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:26,790 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 [2022-02-15 11:30:26,791 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] [2022-02-15 11:30:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2022-02-15 11:30:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 7698. [2022-02-15 11:30:26,884 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) [2022-02-15 11:30:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-15 11:30:26,897 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-15 11:30:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:26,897 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-15 11:30:26,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-15 11:30:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:26,905 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:26,906 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] [2022-02-15 11:30:26,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-02-15 11:30:26,906 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:26,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash 473450480, now seen corresponding path program 81 times [2022-02-15 11:30:26,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:26,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927842188] [2022-02-15 11:30:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:26,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:27,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:27,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:27,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927842188] [2022-02-15 11:30:27,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927842188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:27,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:27,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:27,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994423488] [2022-02-15 11:30:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:27,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:27,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:27,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:27,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:27,024 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) [2022-02-15 11:30:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:27,456 INFO L93 Difference]: Finished difference Result 9138 states and 24122 transitions. [2022-02-15 11:30:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:27,456 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 [2022-02-15 11:30:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:27,466 INFO L225 Difference]: With dead ends: 9138 [2022-02-15 11:30:27,466 INFO L226 Difference]: Without dead ends: 8646 [2022-02-15 11:30:27,466 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 [2022-02-15 11:30:27,466 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 213 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2716 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 [2022-02-15 11:30:27,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2716 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-02-15 11:30:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7682. [2022-02-15 11:30:27,545 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) [2022-02-15 11:30:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-02-15 11:30:27,558 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-02-15 11:30:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:27,558 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-02-15 11:30:27,558 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) [2022-02-15 11:30:27,558 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-02-15 11:30:27,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:27,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:27,569 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] [2022-02-15 11:30:27,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-02-15 11:30:27,569 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:27,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:27,570 INFO L85 PathProgramCache]: Analyzing trace with hash -223288894, now seen corresponding path program 82 times [2022-02-15 11:30:27,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:27,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849070019] [2022-02-15 11:30:27,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:27,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:27,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:27,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849070019] [2022-02-15 11:30:27,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849070019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:27,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:27,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:27,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988542620] [2022-02-15 11:30:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:27,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:27,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:27,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:27,698 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) [2022-02-15 11:30:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:28,145 INFO L93 Difference]: Finished difference Result 9176 states and 24230 transitions. [2022-02-15 11:30:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:28,158 INFO L225 Difference]: With dead ends: 9176 [2022-02-15 11:30:28,158 INFO L226 Difference]: Without dead ends: 8697 [2022-02-15 11:30:28,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:28,158 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 214 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2445 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 [2022-02-15 11:30:28,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2445 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:28,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-15 11:30:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-02-15 11:30:28,246 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) [2022-02-15 11:30:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-15 11:30:28,259 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-15 11:30:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:28,259 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-15 11:30:28,259 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) [2022-02-15 11:30:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-15 11:30:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:28,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:28,268 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] [2022-02-15 11:30:28,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-02-15 11:30:28,269 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:28,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1404234224, now seen corresponding path program 83 times [2022-02-15 11:30:28,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:28,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865583588] [2022-02-15 11:30:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:28,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:28,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:28,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865583588] [2022-02-15 11:30:28,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865583588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:28,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:28,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:28,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854520036] [2022-02-15 11:30:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:28,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:28,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:28,413 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) [2022-02-15 11:30:28,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:28,883 INFO L93 Difference]: Finished difference Result 9134 states and 24119 transitions. [2022-02-15 11:30:28,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:28,883 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 [2022-02-15 11:30:28,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:28,893 INFO L225 Difference]: With dead ends: 9134 [2022-02-15 11:30:28,893 INFO L226 Difference]: Without dead ends: 8654 [2022-02-15 11:30:28,893 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 [2022-02-15 11:30:28,894 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 [2022-02-15 11:30:28,894 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] [2022-02-15 11:30:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-02-15 11:30:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7694. [2022-02-15 11:30:28,970 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) [2022-02-15 11:30:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:28,981 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:28,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:28,981 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:28,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:28,989 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:28,989 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] [2022-02-15 11:30:28,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-02-15 11:30:28,989 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:28,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 283176884, now seen corresponding path program 84 times [2022-02-15 11:30:28,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:28,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301055405] [2022-02-15 11:30:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:28,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:29,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:29,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301055405] [2022-02-15 11:30:29,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301055405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:29,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:29,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:29,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389881084] [2022-02-15 11:30:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:29,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:29,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:29,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:29,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:29,107 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) [2022-02-15 11:30:29,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:29,649 INFO L93 Difference]: Finished difference Result 9242 states and 24396 transitions. [2022-02-15 11:30:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:30:29,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:29,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:29,662 INFO L225 Difference]: With dead ends: 9242 [2022-02-15 11:30:29,662 INFO L226 Difference]: Without dead ends: 8722 [2022-02-15 11:30:29,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:30:29,663 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 290 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 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 [2022-02-15 11:30:29,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:29,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-02-15 11:30:29,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7690. [2022-02-15 11:30:29,755 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) [2022-02-15 11:30:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-15 11:30:29,768 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-15 11:30:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:29,768 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-15 11:30:29,768 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) [2022-02-15 11:30:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-15 11:30:29,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:29,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:29,777 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] [2022-02-15 11:30:29,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-02-15 11:30:29,778 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:29,778 INFO L85 PathProgramCache]: Analyzing trace with hash 355806608, now seen corresponding path program 85 times [2022-02-15 11:30:29,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:29,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926456044] [2022-02-15 11:30:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:29,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:29,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:29,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926456044] [2022-02-15 11:30:29,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926456044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:29,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:29,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:29,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536209382] [2022-02-15 11:30:29,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:29,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:29,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:29,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:29,902 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) [2022-02-15 11:30:30,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:30,512 INFO L93 Difference]: Finished difference Result 9340 states and 24652 transitions. [2022-02-15 11:30:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:30,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:30,524 INFO L225 Difference]: With dead ends: 9340 [2022-02-15 11:30:30,525 INFO L226 Difference]: Without dead ends: 8818 [2022-02-15 11:30:30,525 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 [2022-02-15 11:30:30,525 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 301 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2807 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 [2022-02-15 11:30:30,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2807 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-02-15 11:30:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7694. [2022-02-15 11:30:30,629 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) [2022-02-15 11:30:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-15 11:30:30,643 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-15 11:30:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:30,643 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-15 11:30:30,644 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) [2022-02-15 11:30:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-15 11:30:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:30,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:30,653 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] [2022-02-15 11:30:30,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-02-15 11:30:30,653 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1202108742, now seen corresponding path program 86 times [2022-02-15 11:30:30,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:30,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302693215] [2022-02-15 11:30:30,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:30,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:30,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:30,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302693215] [2022-02-15 11:30:30,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302693215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:30,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:30,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:30,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71172754] [2022-02-15 11:30:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:30,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:30,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:30,778 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) [2022-02-15 11:30:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:31,240 INFO L93 Difference]: Finished difference Result 9176 states and 24222 transitions. [2022-02-15 11:30:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:31,240 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 [2022-02-15 11:30:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:31,250 INFO L225 Difference]: With dead ends: 9176 [2022-02-15 11:30:31,250 INFO L226 Difference]: Without dead ends: 8697 [2022-02-15 11:30:31,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:31,251 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 238 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2508 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 [2022-02-15 11:30:31,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2508 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-15 11:30:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-02-15 11:30:31,331 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) [2022-02-15 11:30:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-15 11:30:31,343 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-15 11:30:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:31,343 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-15 11:30:31,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-15 11:30:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:31,350 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:31,350 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:31,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-02-15 11:30:31,351 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 425414376, now seen corresponding path program 87 times [2022-02-15 11:30:31,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:31,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489914937] [2022-02-15 11:30:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:31,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:31,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:31,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489914937] [2022-02-15 11:30:31,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489914937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:31,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:31,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:31,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010512019] [2022-02-15 11:30:31,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:31,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:31,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:31,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:31,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:31,468 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) [2022-02-15 11:30:31,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:31,916 INFO L93 Difference]: Finished difference Result 9110 states and 24045 transitions. [2022-02-15 11:30:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:31,917 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:31,929 INFO L225 Difference]: With dead ends: 9110 [2022-02-15 11:30:31,929 INFO L226 Difference]: Without dead ends: 8622 [2022-02-15 11:30:31,929 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 [2022-02-15 11:30:31,929 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 226 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2676 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 [2022-02-15 11:30:31,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2676 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-02-15 11:30:32,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7686. [2022-02-15 11:30:32,027 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) [2022-02-15 11:30:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-15 11:30:32,041 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-15 11:30:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:32,041 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-15 11:30:32,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-15 11:30:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:32,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:32,050 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] [2022-02-15 11:30:32,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-02-15 11:30:32,050 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash -856929724, now seen corresponding path program 88 times [2022-02-15 11:30:32,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:32,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598658001] [2022-02-15 11:30:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:32,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:32,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:32,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598658001] [2022-02-15 11:30:32,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598658001] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:32,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:32,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:32,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867355182] [2022-02-15 11:30:32,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:32,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:32,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:32,179 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) [2022-02-15 11:30:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:32,920 INFO L93 Difference]: Finished difference Result 9333 states and 24614 transitions. [2022-02-15 11:30:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:30:32,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:32,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:32,933 INFO L225 Difference]: With dead ends: 9333 [2022-02-15 11:30:32,933 INFO L226 Difference]: Without dead ends: 8768 [2022-02-15 11:30:32,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 11:30:32,934 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 365 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2626 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 [2022-02-15 11:30:32,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2626 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:32,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-02-15 11:30:33,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 7690. [2022-02-15 11:30:33,038 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) [2022-02-15 11:30:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-15 11:30:33,051 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-15 11:30:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:33,051 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-15 11:30:33,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-15 11:30:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:33,060 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:33,060 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] [2022-02-15 11:30:33,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-02-15 11:30:33,060 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:33,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash 7501338, now seen corresponding path program 89 times [2022-02-15 11:30:33,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:33,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750695159] [2022-02-15 11:30:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:33,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:33,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:33,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750695159] [2022-02-15 11:30:33,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750695159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:33,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:33,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:33,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993906687] [2022-02-15 11:30:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:33,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:33,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:33,179 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) [2022-02-15 11:30:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:33,786 INFO L93 Difference]: Finished difference Result 9220 states and 24318 transitions. [2022-02-15 11:30:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:33,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:33,799 INFO L225 Difference]: With dead ends: 9220 [2022-02-15 11:30:33,799 INFO L226 Difference]: Without dead ends: 8698 [2022-02-15 11:30:33,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:30:33,800 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 307 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 2804 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 [2022-02-15 11:30:33,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 2804 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:33,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-02-15 11:30:33,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 7694. [2022-02-15 11:30:33,898 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) [2022-02-15 11:30:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-15 11:30:33,911 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-15 11:30:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:33,911 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-15 11:30:33,911 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) [2022-02-15 11:30:33,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-15 11:30:33,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:33,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:33,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:33,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-02-15 11:30:33,920 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:33,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1550414012, now seen corresponding path program 90 times [2022-02-15 11:30:33,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:33,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202634988] [2022-02-15 11:30:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:33,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:34,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:34,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202634988] [2022-02-15 11:30:34,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202634988] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:34,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:34,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:34,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196064358] [2022-02-15 11:30:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:34,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:34,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:34,045 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) [2022-02-15 11:30:34,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:34,519 INFO L93 Difference]: Finished difference Result 9080 states and 23954 transitions. [2022-02-15 11:30:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:34,520 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:34,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:34,529 INFO L225 Difference]: With dead ends: 9080 [2022-02-15 11:30:34,529 INFO L226 Difference]: Without dead ends: 8601 [2022-02-15 11:30:34,530 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 [2022-02-15 11:30:34,530 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 [2022-02-15 11:30:34,530 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] [2022-02-15 11:30:34,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2022-02-15 11:30:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 7698. [2022-02-15 11:30:34,608 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) [2022-02-15 11:30:34,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-15 11:30:34,620 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-15 11:30:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:34,621 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-15 11:30:34,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-15 11:30:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:34,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:34,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:34,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-02-15 11:30:34,629 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:34,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:34,630 INFO L85 PathProgramCache]: Analyzing trace with hash 77109106, now seen corresponding path program 91 times [2022-02-15 11:30:34,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:34,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266146421] [2022-02-15 11:30:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:34,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:34,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:34,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266146421] [2022-02-15 11:30:34,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266146421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:34,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:34,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:34,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938197129] [2022-02-15 11:30:34,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:34,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:34,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:34,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:34,755 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) [2022-02-15 11:30:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:35,200 INFO L93 Difference]: Finished difference Result 8970 states and 23656 transitions. [2022-02-15 11:30:35,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:35,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:35,211 INFO L225 Difference]: With dead ends: 8970 [2022-02-15 11:30:35,212 INFO L226 Difference]: Without dead ends: 8470 [2022-02-15 11:30:35,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-02-15 11:30:35,212 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 212 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2649 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 [2022-02-15 11:30:35,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2649 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-15 11:30:35,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7674. [2022-02-15 11:30:35,302 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) [2022-02-15 11:30:35,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 20282 transitions. [2022-02-15 11:30:35,315 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 20282 transitions. Word has length 109 [2022-02-15 11:30:35,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:35,315 INFO L470 AbstractCegarLoop]: Abstraction has 7674 states and 20282 transitions. [2022-02-15 11:30:35,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 20282 transitions. [2022-02-15 11:30:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:35,324 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:35,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:35,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-02-15 11:30:35,324 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:35,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash 882893914, now seen corresponding path program 92 times [2022-02-15 11:30:35,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:35,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16778562] [2022-02-15 11:30:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:35,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:35,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:35,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16778562] [2022-02-15 11:30:35,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16778562] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:35,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:35,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:35,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594079098] [2022-02-15 11:30:35,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:35,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:35,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:35,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:35,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:35,463 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) [2022-02-15 11:30:35,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:35,918 INFO L93 Difference]: Finished difference Result 9008 states and 23772 transitions. [2022-02-15 11:30:35,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:35,919 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 [2022-02-15 11:30:35,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:35,930 INFO L225 Difference]: With dead ends: 9008 [2022-02-15 11:30:35,930 INFO L226 Difference]: Without dead ends: 8529 [2022-02-15 11:30:35,931 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 [2022-02-15 11:30:35,931 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 [2022-02-15 11:30:35,931 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] [2022-02-15 11:30:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8529 states. [2022-02-15 11:30:36,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8529 to 7698. [2022-02-15 11:30:36,056 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) [2022-02-15 11:30:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-15 11:30:36,069 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-15 11:30:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:36,069 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-15 11:30:36,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-15 11:30:36,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:36,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:36,078 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] [2022-02-15 11:30:36,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-02-15 11:30:36,078 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:36,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:36,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1784550264, now seen corresponding path program 93 times [2022-02-15 11:30:36,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:36,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841740359] [2022-02-15 11:30:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:36,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:36,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:36,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841740359] [2022-02-15 11:30:36,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841740359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:36,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:36,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:36,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888033538] [2022-02-15 11:30:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:36,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:36,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:36,191 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) [2022-02-15 11:30:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:36,647 INFO L93 Difference]: Finished difference Result 8974 states and 23683 transitions. [2022-02-15 11:30:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:36,647 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:36,660 INFO L225 Difference]: With dead ends: 8974 [2022-02-15 11:30:36,660 INFO L226 Difference]: Without dead ends: 8494 [2022-02-15 11:30:36,660 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 [2022-02-15 11:30:36,660 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 [2022-02-15 11:30:36,660 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] [2022-02-15 11:30:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-02-15 11:30:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7694. [2022-02-15 11:30:36,752 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) [2022-02-15 11:30:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-15 11:30:36,766 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-15 11:30:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:36,766 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-15 11:30:36,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-15 11:30:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:36,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:36,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:36,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-02-15 11:30:36,774 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:36,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1389359692, now seen corresponding path program 94 times [2022-02-15 11:30:36,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:36,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108916193] [2022-02-15 11:30:36,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:36,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:36,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:36,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:36,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108916193] [2022-02-15 11:30:36,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108916193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:36,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:36,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:36,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204802995] [2022-02-15 11:30:36,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:36,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:36,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:36,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:36,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:36,888 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) [2022-02-15 11:30:37,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:37,441 INFO L93 Difference]: Finished difference Result 9010 states and 23778 transitions. [2022-02-15 11:30:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:37,441 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 [2022-02-15 11:30:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:37,453 INFO L225 Difference]: With dead ends: 9010 [2022-02-15 11:30:37,453 INFO L226 Difference]: Without dead ends: 8490 [2022-02-15 11:30:37,453 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 [2022-02-15 11:30:37,453 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 [2022-02-15 11:30:37,453 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] [2022-02-15 11:30:37,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-02-15 11:30:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7690. [2022-02-15 11:30:37,543 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) [2022-02-15 11:30:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-15 11:30:37,556 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-15 11:30:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:37,556 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-15 11:30:37,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-15 11:30:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:37,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:37,565 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] [2022-02-15 11:30:37,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-02-15 11:30:37,565 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash 864224156, now seen corresponding path program 95 times [2022-02-15 11:30:37,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:37,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862859925] [2022-02-15 11:30:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:37,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:37,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:37,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862859925] [2022-02-15 11:30:37,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862859925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:37,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:37,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:37,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988321926] [2022-02-15 11:30:37,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:37,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:37,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:37,679 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) [2022-02-15 11:30:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:38,309 INFO L93 Difference]: Finished difference Result 9126 states and 24069 transitions. [2022-02-15 11:30:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:30:38,309 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 [2022-02-15 11:30:38,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:38,321 INFO L225 Difference]: With dead ends: 9126 [2022-02-15 11:30:38,321 INFO L226 Difference]: Without dead ends: 8566 [2022-02-15 11:30:38,322 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 [2022-02-15 11:30:38,322 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2983 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 [2022-02-15 11:30:38,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2983 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-02-15 11:30:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7686. [2022-02-15 11:30:38,414 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) [2022-02-15 11:30:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-15 11:30:38,427 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-15 11:30:38,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:38,427 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-15 11:30:38,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-15 11:30:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:38,437 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:38,437 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] [2022-02-15 11:30:38,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-02-15 11:30:38,437 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:38,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:38,437 INFO L85 PathProgramCache]: Analyzing trace with hash 673910752, now seen corresponding path program 96 times [2022-02-15 11:30:38,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:38,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976068840] [2022-02-15 11:30:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:38,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:38,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:38,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976068840] [2022-02-15 11:30:38,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976068840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:38,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:38,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:38,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832692081] [2022-02-15 11:30:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:38,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:38,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:38,555 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) [2022-02-15 11:30:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:39,027 INFO L93 Difference]: Finished difference Result 9076 states and 23955 transitions. [2022-02-15 11:30:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:39,028 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 [2022-02-15 11:30:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:39,039 INFO L225 Difference]: With dead ends: 9076 [2022-02-15 11:30:39,039 INFO L226 Difference]: Without dead ends: 8597 [2022-02-15 11:30:39,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:39,040 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 232 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2679 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 [2022-02-15 11:30:39,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2679 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:39,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2022-02-15 11:30:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 7698. [2022-02-15 11:30:39,133 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) [2022-02-15 11:30:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-15 11:30:39,146 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-15 11:30:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:39,146 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-15 11:30:39,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-15 11:30:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:39,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:39,155 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] [2022-02-15 11:30:39,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-02-15 11:30:39,155 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:39,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1993533426, now seen corresponding path program 97 times [2022-02-15 11:30:39,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:39,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240737213] [2022-02-15 11:30:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:39,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:39,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:39,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240737213] [2022-02-15 11:30:39,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240737213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:39,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:39,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:39,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338608234] [2022-02-15 11:30:39,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:39,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:39,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:39,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:39,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:39,287 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) [2022-02-15 11:30:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:39,750 INFO L93 Difference]: Finished difference Result 9034 states and 23844 transitions. [2022-02-15 11:30:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:39,750 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 [2022-02-15 11:30:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:39,762 INFO L225 Difference]: With dead ends: 9034 [2022-02-15 11:30:39,762 INFO L226 Difference]: Without dead ends: 8554 [2022-02-15 11:30:39,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:39,763 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 [2022-02-15 11:30:39,763 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] [2022-02-15 11:30:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-02-15 11:30:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7694. [2022-02-15 11:30:39,852 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) [2022-02-15 11:30:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:39,865 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:39,865 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:39,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:39,874 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:39,874 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] [2022-02-15 11:30:39,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-02-15 11:30:39,874 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:39,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376530, now seen corresponding path program 98 times [2022-02-15 11:30:39,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:39,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433850992] [2022-02-15 11:30:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:39,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:39,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:39,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433850992] [2022-02-15 11:30:39,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433850992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:39,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:39,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:39,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973855170] [2022-02-15 11:30:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:39,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:39,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:39,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:39,990 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) [2022-02-15 11:30:40,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:40,555 INFO L93 Difference]: Finished difference Result 9162 states and 24176 transitions. [2022-02-15 11:30:40,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:40,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:40,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:40,566 INFO L225 Difference]: With dead ends: 9162 [2022-02-15 11:30:40,567 INFO L226 Difference]: Without dead ends: 8642 [2022-02-15 11:30:40,567 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 [2022-02-15 11:30:40,567 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 304 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2718 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 [2022-02-15 11:30:40,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2718 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:40,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-02-15 11:30:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7690. [2022-02-15 11:30:40,656 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) [2022-02-15 11:30:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-15 11:30:40,668 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-15 11:30:40,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:40,669 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-15 11:30:40,669 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) [2022-02-15 11:30:40,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-15 11:30:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:40,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:40,677 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] [2022-02-15 11:30:40,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-02-15 11:30:40,677 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1253006254, now seen corresponding path program 99 times [2022-02-15 11:30:40,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:40,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52935362] [2022-02-15 11:30:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:40,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:40,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:40,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52935362] [2022-02-15 11:30:40,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52935362] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:40,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:40,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:40,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035035435] [2022-02-15 11:30:40,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:40,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:40,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:40,791 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) [2022-02-15 11:30:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:41,353 INFO L93 Difference]: Finished difference Result 9164 states and 24168 transitions. [2022-02-15 11:30:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:30:41,353 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 [2022-02-15 11:30:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:41,365 INFO L225 Difference]: With dead ends: 9164 [2022-02-15 11:30:41,365 INFO L226 Difference]: Without dead ends: 8642 [2022-02-15 11:30:41,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:30:41,366 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 285 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:41,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2767 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-02-15 11:30:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7694. [2022-02-15 11:30:41,465 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) [2022-02-15 11:30:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-15 11:30:41,479 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-15 11:30:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:41,479 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-15 11:30:41,479 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) [2022-02-15 11:30:41,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-15 11:30:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:41,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:41,488 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] [2022-02-15 11:30:41,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-02-15 11:30:41,488 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:41,489 INFO L85 PathProgramCache]: Analyzing trace with hash -304909096, now seen corresponding path program 100 times [2022-02-15 11:30:41,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:41,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275981876] [2022-02-15 11:30:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:41,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:41,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:41,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275981876] [2022-02-15 11:30:41,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275981876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:41,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:41,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:41,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795861124] [2022-02-15 11:30:41,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:41,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:41,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:41,616 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) [2022-02-15 11:30:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:42,109 INFO L93 Difference]: Finished difference Result 9016 states and 23782 transitions. [2022-02-15 11:30:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:42,109 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 [2022-02-15 11:30:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:42,121 INFO L225 Difference]: With dead ends: 9016 [2022-02-15 11:30:42,121 INFO L226 Difference]: Without dead ends: 8537 [2022-02-15 11:30:42,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:42,122 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2538 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 [2022-02-15 11:30:42,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2538 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2022-02-15 11:30:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 7698. [2022-02-15 11:30:42,210 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) [2022-02-15 11:30:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-15 11:30:42,223 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-15 11:30:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:42,223 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-15 11:30:42,223 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) [2022-02-15 11:30:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-15 11:30:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:42,232 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:42,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:42,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-02-15 11:30:42,232 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:42,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1322614022, now seen corresponding path program 101 times [2022-02-15 11:30:42,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:42,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239566542] [2022-02-15 11:30:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:42,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:42,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:42,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239566542] [2022-02-15 11:30:42,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239566542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:42,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:42,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:42,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696323057] [2022-02-15 11:30:42,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:42,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:42,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:42,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:42,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:42,353 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) [2022-02-15 11:30:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:42,791 INFO L93 Difference]: Finished difference Result 8934 states and 23561 transitions. [2022-02-15 11:30:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:42,792 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 [2022-02-15 11:30:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:42,802 INFO L225 Difference]: With dead ends: 8934 [2022-02-15 11:30:42,802 INFO L226 Difference]: Without dead ends: 8442 [2022-02-15 11:30:42,802 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 [2022-02-15 11:30:42,802 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 205 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:30:42,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2644 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-02-15 11:30:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7682. [2022-02-15 11:30:42,887 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) [2022-02-15 11:30:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-02-15 11:30:42,898 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-02-15 11:30:42,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:42,898 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-02-15 11:30:42,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-02-15 11:30:42,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:42,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:42,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:42,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-02-15 11:30:42,907 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:42,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:42,907 INFO L85 PathProgramCache]: Analyzing trace with hash 625874648, now seen corresponding path program 102 times [2022-02-15 11:30:42,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:42,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925596769] [2022-02-15 11:30:42,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:42,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:43,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:43,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925596769] [2022-02-15 11:30:43,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925596769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:43,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:43,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:43,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124289690] [2022-02-15 11:30:43,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:43,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:43,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:43,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:43,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:43,030 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) [2022-02-15 11:30:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:43,473 INFO L93 Difference]: Finished difference Result 9112 states and 24054 transitions. [2022-02-15 11:30:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:43,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:43,486 INFO L225 Difference]: With dead ends: 9112 [2022-02-15 11:30:43,486 INFO L226 Difference]: Without dead ends: 8633 [2022-02-15 11:30:43,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:43,486 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 237 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2399 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 [2022-02-15 11:30:43,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2399 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-02-15 11:30:43,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-02-15 11:30:43,588 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) [2022-02-15 11:30:43,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-15 11:30:43,602 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-15 11:30:43,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:43,602 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-15 11:30:43,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:43,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-15 11:30:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:43,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:43,611 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] [2022-02-15 11:30:43,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-02-15 11:30:43,612 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:43,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:43,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2041569530, now seen corresponding path program 103 times [2022-02-15 11:30:43,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:43,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685642959] [2022-02-15 11:30:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:43,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:43,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:43,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685642959] [2022-02-15 11:30:43,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685642959] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:43,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:43,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:43,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711939127] [2022-02-15 11:30:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:43,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:43,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:43,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:43,735 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) [2022-02-15 11:30:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:44,226 INFO L93 Difference]: Finished difference Result 9070 states and 23943 transitions. [2022-02-15 11:30:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:44,238 INFO L225 Difference]: With dead ends: 9070 [2022-02-15 11:30:44,238 INFO L226 Difference]: Without dead ends: 8590 [2022-02-15 11:30:44,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:30:44,238 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 221 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2652 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 [2022-02-15 11:30:44,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2652 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-02-15 11:30:44,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 7694. [2022-02-15 11:30:44,322 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) [2022-02-15 11:30:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:44,334 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:44,335 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:44,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:44,343 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:44,343 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] [2022-02-15 11:30:44,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-02-15 11:30:44,343 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:44,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340426, now seen corresponding path program 104 times [2022-02-15 11:30:44,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:44,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562896748] [2022-02-15 11:30:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:44,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:44,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:44,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562896748] [2022-02-15 11:30:44,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562896748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:44,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:44,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:44,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447480049] [2022-02-15 11:30:44,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:44,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:44,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:44,459 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) [2022-02-15 11:30:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:45,023 INFO L93 Difference]: Finished difference Result 9178 states and 24220 transitions. [2022-02-15 11:30:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:30:45,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:45,035 INFO L225 Difference]: With dead ends: 9178 [2022-02-15 11:30:45,035 INFO L226 Difference]: Without dead ends: 8658 [2022-02-15 11:30:45,036 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 [2022-02-15 11:30:45,036 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 297 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2868 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 [2022-02-15 11:30:45,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2868 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-15 11:30:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7690. [2022-02-15 11:30:45,124 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) [2022-02-15 11:30:45,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-15 11:30:45,137 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-15 11:30:45,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:45,137 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-15 11:30:45,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:45,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-15 11:30:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:45,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:45,145 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] [2022-02-15 11:30:45,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-02-15 11:30:45,145 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:45,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:45,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1204970150, now seen corresponding path program 105 times [2022-02-15 11:30:45,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:45,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380652897] [2022-02-15 11:30:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:45,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:45,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:45,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380652897] [2022-02-15 11:30:45,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380652897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:45,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:45,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:45,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326250499] [2022-02-15 11:30:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:45,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:45,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:45,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:45,264 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) [2022-02-15 11:30:45,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:45,865 INFO L93 Difference]: Finished difference Result 9276 states and 24476 transitions. [2022-02-15 11:30:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:45,865 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 [2022-02-15 11:30:45,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:45,878 INFO L225 Difference]: With dead ends: 9276 [2022-02-15 11:30:45,878 INFO L226 Difference]: Without dead ends: 8754 [2022-02-15 11:30:45,878 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 [2022-02-15 11:30:45,879 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 [2022-02-15 11:30:45,879 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] [2022-02-15 11:30:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8754 states. [2022-02-15 11:30:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8754 to 7694. [2022-02-15 11:30:46,008 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) [2022-02-15 11:30:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-15 11:30:46,021 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-15 11:30:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:46,021 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-15 11:30:46,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-15 11:30:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:46,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:46,030 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] [2022-02-15 11:30:46,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-02-15 11:30:46,030 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:46,031 INFO L85 PathProgramCache]: Analyzing trace with hash -352945200, now seen corresponding path program 106 times [2022-02-15 11:30:46,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:46,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363205219] [2022-02-15 11:30:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:46,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:46,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:46,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363205219] [2022-02-15 11:30:46,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363205219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:46,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:46,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:46,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417439964] [2022-02-15 11:30:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:46,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:46,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:46,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:46,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:46,149 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) [2022-02-15 11:30:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:46,599 INFO L93 Difference]: Finished difference Result 9112 states and 24046 transitions. [2022-02-15 11:30:46,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:46,599 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 [2022-02-15 11:30:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:46,610 INFO L225 Difference]: With dead ends: 9112 [2022-02-15 11:30:46,611 INFO L226 Difference]: Without dead ends: 8633 [2022-02-15 11:30:46,611 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 [2022-02-15 11:30:46,611 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 239 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2118 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 [2022-02-15 11:30:46,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2118 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-02-15 11:30:46,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-02-15 11:30:46,710 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) [2022-02-15 11:30:46,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-15 11:30:46,721 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-15 11:30:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:46,721 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-15 11:30:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-15 11:30:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:46,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:46,729 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] [2022-02-15 11:30:46,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-02-15 11:30:46,729 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1274577918, now seen corresponding path program 107 times [2022-02-15 11:30:46,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:46,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890195615] [2022-02-15 11:30:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:46,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:46,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:46,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890195615] [2022-02-15 11:30:46,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890195615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:46,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:46,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:46,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161708239] [2022-02-15 11:30:46,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:46,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:46,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:46,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:46,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:46,847 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) [2022-02-15 11:30:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:47,272 INFO L93 Difference]: Finished difference Result 9046 states and 23869 transitions. [2022-02-15 11:30:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:47,272 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 [2022-02-15 11:30:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:47,284 INFO L225 Difference]: With dead ends: 9046 [2022-02-15 11:30:47,284 INFO L226 Difference]: Without dead ends: 8558 [2022-02-15 11:30:47,285 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 [2022-02-15 11:30:47,285 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 [2022-02-15 11:30:47,285 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] [2022-02-15 11:30:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-02-15 11:30:47,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7686. [2022-02-15 11:30:47,385 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) [2022-02-15 11:30:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-15 11:30:47,399 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-15 11:30:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:47,399 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-15 11:30:47,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-15 11:30:47,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:47,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:47,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:47,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-02-15 11:30:47,409 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash -7766182, now seen corresponding path program 108 times [2022-02-15 11:30:47,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:47,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96288774] [2022-02-15 11:30:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:47,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:47,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:47,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96288774] [2022-02-15 11:30:47,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96288774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:47,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:47,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:47,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439968302] [2022-02-15 11:30:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:47,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:47,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:47,533 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) [2022-02-15 11:30:48,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:48,257 INFO L93 Difference]: Finished difference Result 9297 states and 24515 transitions. [2022-02-15 11:30:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:30:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:48,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:48,270 INFO L225 Difference]: With dead ends: 9297 [2022-02-15 11:30:48,270 INFO L226 Difference]: Without dead ends: 8732 [2022-02-15 11:30:48,270 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 [2022-02-15 11:30:48,270 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 355 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2620 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 [2022-02-15 11:30:48,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2620 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-02-15 11:30:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 7690. [2022-02-15 11:30:48,368 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) [2022-02-15 11:30:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-15 11:30:48,381 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-15 11:30:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:48,381 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-15 11:30:48,381 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) [2022-02-15 11:30:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-15 11:30:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:48,390 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:48,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:48,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-02-15 11:30:48,390 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:48,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:48,390 INFO L85 PathProgramCache]: Analyzing trace with hash 856664880, now seen corresponding path program 109 times [2022-02-15 11:30:48,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:48,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171760145] [2022-02-15 11:30:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:48,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:48,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:48,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171760145] [2022-02-15 11:30:48,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171760145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:48,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:48,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:48,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95240653] [2022-02-15 11:30:48,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:48,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:48,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:48,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:48,509 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) [2022-02-15 11:30:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:49,109 INFO L93 Difference]: Finished difference Result 9180 states and 24208 transitions. [2022-02-15 11:30:49,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:49,109 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 [2022-02-15 11:30:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:49,121 INFO L225 Difference]: With dead ends: 9180 [2022-02-15 11:30:49,122 INFO L226 Difference]: Without dead ends: 8658 [2022-02-15 11:30:49,122 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 [2022-02-15 11:30:49,122 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 300 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2187 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 [2022-02-15 11:30:49,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2187 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:49,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-15 11:30:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7694. [2022-02-15 11:30:49,203 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) [2022-02-15 11:30:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-15 11:30:49,215 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-15 11:30:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:49,215 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-15 11:30:49,215 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) [2022-02-15 11:30:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-15 11:30:49,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:49,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:49,223 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] [2022-02-15 11:30:49,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-02-15 11:30:49,223 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash -701250470, now seen corresponding path program 110 times [2022-02-15 11:30:49,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:49,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452512012] [2022-02-15 11:30:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:49,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:49,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:49,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452512012] [2022-02-15 11:30:49,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452512012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:49,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:49,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:49,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888122185] [2022-02-15 11:30:49,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:49,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:49,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:49,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:49,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:49,345 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) [2022-02-15 11:30:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:49,786 INFO L93 Difference]: Finished difference Result 9032 states and 23822 transitions. [2022-02-15 11:30:49,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:49,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:49,796 INFO L225 Difference]: With dead ends: 9032 [2022-02-15 11:30:49,796 INFO L226 Difference]: Without dead ends: 8553 [2022-02-15 11:30:49,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:49,797 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 228 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2459 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 [2022-02-15 11:30:49,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2459 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2022-02-15 11:30:49,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 7698. [2022-02-15 11:30:49,877 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) [2022-02-15 11:30:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-15 11:30:49,889 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-15 11:30:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:49,889 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-15 11:30:49,889 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) [2022-02-15 11:30:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-15 11:30:49,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:49,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:49,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:49,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-02-15 11:30:49,897 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:49,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:49,897 INFO L85 PathProgramCache]: Analyzing trace with hash 926272648, now seen corresponding path program 111 times [2022-02-15 11:30:49,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:49,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680180601] [2022-02-15 11:30:49,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:49,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:50,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:50,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680180601] [2022-02-15 11:30:50,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680180601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:50,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:50,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:50,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109086670] [2022-02-15 11:30:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:50,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:50,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:50,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:50,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:50,014 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) [2022-02-15 11:30:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:50,411 INFO L93 Difference]: Finished difference Result 8934 states and 23557 transitions. [2022-02-15 11:30:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:50,411 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 [2022-02-15 11:30:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:50,422 INFO L225 Difference]: With dead ends: 8934 [2022-02-15 11:30:50,422 INFO L226 Difference]: Without dead ends: 8438 [2022-02-15 11:30:50,422 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 [2022-02-15 11:30:50,422 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 209 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2459 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 [2022-02-15 11:30:50,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2459 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-02-15 11:30:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7678. [2022-02-15 11:30:50,497 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) [2022-02-15 11:30:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20289 transitions. [2022-02-15 11:30:50,509 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20289 transitions. Word has length 109 [2022-02-15 11:30:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:50,509 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20289 transitions. [2022-02-15 11:30:50,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20289 transitions. [2022-02-15 11:30:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:50,521 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:50,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:50,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-02-15 11:30:50,521 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash -477638808, now seen corresponding path program 112 times [2022-02-15 11:30:50,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:50,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949096860] [2022-02-15 11:30:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:50,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:50,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:50,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949096860] [2022-02-15 11:30:50,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949096860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:50,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:50,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:50,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284203063] [2022-02-15 11:30:50,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:50,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:50,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:50,637 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) [2022-02-15 11:30:51,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:51,081 INFO L93 Difference]: Finished difference Result 8968 states and 23658 transitions. [2022-02-15 11:30:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:51,082 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:51,092 INFO L225 Difference]: With dead ends: 8968 [2022-02-15 11:30:51,092 INFO L226 Difference]: Without dead ends: 8489 [2022-02-15 11:30:51,093 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 [2022-02-15 11:30:51,093 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 236 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2497 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 [2022-02-15 11:30:51,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2497 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:51,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-02-15 11:30:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7698. [2022-02-15 11:30:51,174 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) [2022-02-15 11:30:51,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-15 11:30:51,186 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-15 11:30:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:51,186 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-15 11:30:51,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-15 11:30:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:51,194 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:51,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:51,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-02-15 11:30:51,195 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1149884310, now seen corresponding path program 113 times [2022-02-15 11:30:51,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:51,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909951926] [2022-02-15 11:30:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:51,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:51,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:51,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909951926] [2022-02-15 11:30:51,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909951926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:51,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:51,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:51,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66839173] [2022-02-15 11:30:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:51,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:51,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:51,318 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) [2022-02-15 11:30:51,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:51,777 INFO L93 Difference]: Finished difference Result 8926 states and 23547 transitions. [2022-02-15 11:30:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:51,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:51,787 INFO L225 Difference]: With dead ends: 8926 [2022-02-15 11:30:51,787 INFO L226 Difference]: Without dead ends: 8446 [2022-02-15 11:30:51,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:51,788 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 [2022-02-15 11:30:51,788 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] [2022-02-15 11:30:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-02-15 11:30:51,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7694. [2022-02-15 11:30:51,863 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) [2022-02-15 11:30:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-15 11:30:51,873 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-15 11:30:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:51,874 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-15 11:30:51,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-15 11:30:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:51,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:51,881 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] [2022-02-15 11:30:51,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-02-15 11:30:51,881 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:51,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash 28826970, now seen corresponding path program 114 times [2022-02-15 11:30:51,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:51,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235889795] [2022-02-15 11:30:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:51,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:51,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:51,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235889795] [2022-02-15 11:30:51,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235889795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:51,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:51,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:51,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954549166] [2022-02-15 11:30:51,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:51,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:51,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:51,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:51,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:51,999 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) [2022-02-15 11:30:52,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:52,527 INFO L93 Difference]: Finished difference Result 9014 states and 23769 transitions. [2022-02-15 11:30:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:30:52,527 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 [2022-02-15 11:30:52,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:52,540 INFO L225 Difference]: With dead ends: 9014 [2022-02-15 11:30:52,540 INFO L226 Difference]: Without dead ends: 8494 [2022-02-15 11:30:52,540 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 [2022-02-15 11:30:52,540 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 296 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2679 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 [2022-02-15 11:30:52,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2679 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-02-15 11:30:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7690. [2022-02-15 11:30:52,639 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) [2022-02-15 11:30:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-15 11:30:52,653 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-15 11:30:52,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:52,653 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-15 11:30:52,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:52,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-15 11:30:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:52,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:52,662 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] [2022-02-15 11:30:52,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-02-15 11:30:52,663 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:52,663 INFO L85 PathProgramCache]: Analyzing trace with hash 101456694, now seen corresponding path program 115 times [2022-02-15 11:30:52,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:52,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771399511] [2022-02-15 11:30:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:52,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:52,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:52,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771399511] [2022-02-15 11:30:52,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771399511] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:52,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:52,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:52,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109755452] [2022-02-15 11:30:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:52,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:52,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:52,777 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) [2022-02-15 11:30:53,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:53,348 INFO L93 Difference]: Finished difference Result 9128 states and 24069 transitions. [2022-02-15 11:30:53,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:30:53,348 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:53,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:53,359 INFO L225 Difference]: With dead ends: 9128 [2022-02-15 11:30:53,360 INFO L226 Difference]: Without dead ends: 8606 [2022-02-15 11:30:53,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:30:53,360 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 336 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2870 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 [2022-02-15 11:30:53,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2870 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:53,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-02-15 11:30:53,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 7694. [2022-02-15 11:30:53,446 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) [2022-02-15 11:30:53,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-15 11:30:53,460 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-15 11:30:53,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:53,460 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-15 11:30:53,460 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) [2022-02-15 11:30:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-15 11:30:53,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:53,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:53,469 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] [2022-02-15 11:30:53,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-02-15 11:30:53,470 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:53,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:53,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1456458656, now seen corresponding path program 116 times [2022-02-15 11:30:53,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:53,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230311862] [2022-02-15 11:30:53,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:53,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:53,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:53,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230311862] [2022-02-15 11:30:53,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230311862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:53,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:53,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:53,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110295556] [2022-02-15 11:30:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:53,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:53,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:53,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:53,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:53,591 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) [2022-02-15 11:30:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:54,080 INFO L93 Difference]: Finished difference Result 8964 states and 23639 transitions. [2022-02-15 11:30:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:54,081 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 [2022-02-15 11:30:54,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:54,092 INFO L225 Difference]: With dead ends: 8964 [2022-02-15 11:30:54,092 INFO L226 Difference]: Without dead ends: 8485 [2022-02-15 11:30:54,092 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 [2022-02-15 11:30:54,092 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 261 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2783 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 [2022-02-15 11:30:54,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 2783 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2022-02-15 11:30:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 7698. [2022-02-15 11:30:54,178 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) [2022-02-15 11:30:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-15 11:30:54,191 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-15 11:30:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:54,191 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-15 11:30:54,191 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) [2022-02-15 11:30:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-15 11:30:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:54,199 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:54,199 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] [2022-02-15 11:30:54,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-02-15 11:30:54,200 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash 171064462, now seen corresponding path program 117 times [2022-02-15 11:30:54,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:54,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180514566] [2022-02-15 11:30:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:54,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:54,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:54,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180514566] [2022-02-15 11:30:54,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180514566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:54,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:54,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:54,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661723924] [2022-02-15 11:30:54,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:54,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:54,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:54,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:54,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:54,319 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) [2022-02-15 11:30:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:54,766 INFO L93 Difference]: Finished difference Result 8898 states and 23462 transitions. [2022-02-15 11:30:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:30:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:54,778 INFO L225 Difference]: With dead ends: 8898 [2022-02-15 11:30:54,778 INFO L226 Difference]: Without dead ends: 8410 [2022-02-15 11:30:54,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:30:54,778 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 242 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2187 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 [2022-02-15 11:30:54,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2187 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-02-15 11:30:54,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7686. [2022-02-15 11:30:54,870 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) [2022-02-15 11:30:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-15 11:30:54,883 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-15 11:30:54,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:54,883 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-15 11:30:54,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-15 11:30:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:54,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:54,892 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] [2022-02-15 11:30:54,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-02-15 11:30:54,892 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1111279638, now seen corresponding path program 118 times [2022-02-15 11:30:54,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:54,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582205927] [2022-02-15 11:30:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:54,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:55,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:55,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582205927] [2022-02-15 11:30:55,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582205927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:55,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:55,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:55,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390716185] [2022-02-15 11:30:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:55,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:55,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:55,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:55,014 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) [2022-02-15 11:30:55,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:55,808 INFO L93 Difference]: Finished difference Result 9261 states and 24416 transitions. [2022-02-15 11:30:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:30:55,808 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 [2022-02-15 11:30:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:55,820 INFO L225 Difference]: With dead ends: 9261 [2022-02-15 11:30:55,821 INFO L226 Difference]: Without dead ends: 8696 [2022-02-15 11:30:55,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:30:55,821 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 408 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2948 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 [2022-02-15 11:30:55,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 2948 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-02-15 11:30:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7690. [2022-02-15 11:30:55,937 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) [2022-02-15 11:30:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-15 11:30:55,951 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-15 11:30:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:55,951 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-15 11:30:55,951 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) [2022-02-15 11:30:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-15 11:30:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:55,960 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:55,960 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] [2022-02-15 11:30:55,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-02-15 11:30:55,960 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:55,961 INFO L85 PathProgramCache]: Analyzing trace with hash -246848576, now seen corresponding path program 119 times [2022-02-15 11:30:55,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:55,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388885933] [2022-02-15 11:30:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:55,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:56,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:56,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388885933] [2022-02-15 11:30:56,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388885933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:56,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:56,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:56,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329387678] [2022-02-15 11:30:56,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:56,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:56,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:56,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:56,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:56,073 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) [2022-02-15 11:30:56,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:56,625 INFO L93 Difference]: Finished difference Result 9136 states and 24087 transitions. [2022-02-15 11:30:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:30:56,625 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:56,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:56,637 INFO L225 Difference]: With dead ends: 9136 [2022-02-15 11:30:56,637 INFO L226 Difference]: Without dead ends: 8614 [2022-02-15 11:30:56,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:30:56,638 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 348 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2429 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 [2022-02-15 11:30:56,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2429 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:56,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-02-15 11:30:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7694. [2022-02-15 11:30:56,733 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) [2022-02-15 11:30:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-15 11:30:56,745 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-15 11:30:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:56,746 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-15 11:30:56,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-15 11:30:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:56,754 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:56,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:56,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-02-15 11:30:56,754 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:56,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:56,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1804763926, now seen corresponding path program 120 times [2022-02-15 11:30:56,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:56,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658003705] [2022-02-15 11:30:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:56,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:56,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:56,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658003705] [2022-02-15 11:30:56,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658003705] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:56,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:56,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:56,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965801221] [2022-02-15 11:30:56,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:56,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:56,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:56,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:56,871 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) [2022-02-15 11:30:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:57,312 INFO L93 Difference]: Finished difference Result 8972 states and 23657 transitions. [2022-02-15 11:30:57,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:30:57,312 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 [2022-02-15 11:30:57,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:57,323 INFO L225 Difference]: With dead ends: 8972 [2022-02-15 11:30:57,323 INFO L226 Difference]: Without dead ends: 8493 [2022-02-15 11:30:57,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:30:57,324 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 262 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2365 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 [2022-02-15 11:30:57,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2365 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-02-15 11:30:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7698. [2022-02-15 11:30:57,413 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) [2022-02-15 11:30:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-15 11:30:57,425 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-15 11:30:57,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:57,425 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-15 11:30:57,426 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) [2022-02-15 11:30:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-15 11:30:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:57,434 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:57,434 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] [2022-02-15 11:30:57,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-02-15 11:30:57,434 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:57,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:57,435 INFO L85 PathProgramCache]: Analyzing trace with hash -177240808, now seen corresponding path program 121 times [2022-02-15 11:30:57,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:57,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703115921] [2022-02-15 11:30:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:57,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:57,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:57,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703115921] [2022-02-15 11:30:57,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703115921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:57,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:57,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:57,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272683462] [2022-02-15 11:30:57,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:57,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:57,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:57,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:57,551 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) [2022-02-15 11:30:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:57,947 INFO L93 Difference]: Finished difference Result 8898 states and 23458 transitions. [2022-02-15 11:30:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:30:57,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:57,959 INFO L225 Difference]: With dead ends: 8898 [2022-02-15 11:30:57,960 INFO L226 Difference]: Without dead ends: 8406 [2022-02-15 11:30:57,960 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 [2022-02-15 11:30:57,960 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 [2022-02-15 11:30:57,960 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] [2022-02-15 11:30:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2022-02-15 11:30:58,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 7682. [2022-02-15 11:30:58,053 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) [2022-02-15 11:30:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20296 transitions. [2022-02-15 11:30:58,066 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20296 transitions. Word has length 109 [2022-02-15 11:30:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:58,066 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20296 transitions. [2022-02-15 11:30:58,066 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) [2022-02-15 11:30:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20296 transitions. [2022-02-15 11:30:58,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:58,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:58,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:58,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-02-15 11:30:58,075 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash -758803116, now seen corresponding path program 122 times [2022-02-15 11:30:58,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:58,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419186852] [2022-02-15 11:30:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:58,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:58,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:58,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419186852] [2022-02-15 11:30:58,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419186852] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:58,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:58,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:58,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955961020] [2022-02-15 11:30:58,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:58,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:58,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:58,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:58,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:58,185 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) [2022-02-15 11:30:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:58,880 INFO L93 Difference]: Finished difference Result 9142 states and 24070 transitions. [2022-02-15 11:30:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:30:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:58,893 INFO L225 Difference]: With dead ends: 9142 [2022-02-15 11:30:58,893 INFO L226 Difference]: Without dead ends: 8534 [2022-02-15 11:30:58,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 11:30:58,893 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 477 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2485 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 [2022-02-15 11:30:58,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 2485 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-02-15 11:30:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7686. [2022-02-15 11:30:58,988 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) [2022-02-15 11:30:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20303 transitions. [2022-02-15 11:30:59,000 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20303 transitions. Word has length 109 [2022-02-15 11:30:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:59,001 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20303 transitions. [2022-02-15 11:30:59,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20303 transitions. [2022-02-15 11:30:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:59,009 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:59,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:30:59,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-02-15 11:30:59,009 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:59,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1265692440, now seen corresponding path program 123 times [2022-02-15 11:30:59,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:59,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886110984] [2022-02-15 11:30:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:59,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:30:59,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:30:59,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:30:59,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886110984] [2022-02-15 11:30:59,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886110984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:30:59,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:30:59,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:30:59,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540515102] [2022-02-15 11:30:59,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:30:59,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:30:59,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:30:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:30:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:30:59,120 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) [2022-02-15 11:30:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:30:59,789 INFO L93 Difference]: Finished difference Result 9037 states and 23796 transitions. [2022-02-15 11:30:59,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:30:59,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:30:59,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:30:59,800 INFO L225 Difference]: With dead ends: 9037 [2022-02-15 11:30:59,800 INFO L226 Difference]: Without dead ends: 8472 [2022-02-15 11:30:59,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 11:30:59,801 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 422 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2357 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 [2022-02-15 11:30:59,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2357 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:30:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2022-02-15 11:30:59,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 7690. [2022-02-15 11:30:59,890 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) [2022-02-15 11:30:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20310 transitions. [2022-02-15 11:30:59,903 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20310 transitions. Word has length 109 [2022-02-15 11:30:59,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:30:59,903 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20310 transitions. [2022-02-15 11:30:59,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:30:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20310 transitions. [2022-02-15 11:30:59,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:30:59,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:30:59,912 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] [2022-02-15 11:30:59,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-02-15 11:30:59,912 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:30:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:30:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2130123502, now seen corresponding path program 124 times [2022-02-15 11:30:59,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:30:59,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812470626] [2022-02-15 11:30:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:30:59,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:30:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:00,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:00,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812470626] [2022-02-15 11:31:00,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812470626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:00,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:00,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:00,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161306428] [2022-02-15 11:31:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:00,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:00,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:00,024 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) [2022-02-15 11:31:00,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:00,568 INFO L93 Difference]: Finished difference Result 8932 states and 23522 transitions. [2022-02-15 11:31:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:00,568 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 [2022-02-15 11:31:00,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:00,580 INFO L225 Difference]: With dead ends: 8932 [2022-02-15 11:31:00,580 INFO L226 Difference]: Without dead ends: 8410 [2022-02-15 11:31:00,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1687, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:00,580 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 355 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2399 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 [2022-02-15 11:31:00,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2399 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-02-15 11:31:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7694. [2022-02-15 11:31:00,672 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) [2022-02-15 11:31:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20317 transitions. [2022-02-15 11:31:00,685 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20317 transitions. Word has length 109 [2022-02-15 11:31:00,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:00,685 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20317 transitions. [2022-02-15 11:31:00,685 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) [2022-02-15 11:31:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20317 transitions. [2022-02-15 11:31:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:00,693 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:00,694 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] [2022-02-15 11:31:00,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-02-15 11:31:00,694 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:00,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:00,694 INFO L85 PathProgramCache]: Analyzing trace with hash 572208152, now seen corresponding path program 125 times [2022-02-15 11:31:00,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:00,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196265197] [2022-02-15 11:31:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:00,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:00,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:00,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196265197] [2022-02-15 11:31:00,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196265197] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:00,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:00,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:00,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261120189] [2022-02-15 11:31:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:00,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:00,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:00,811 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) [2022-02-15 11:31:01,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:01,252 INFO L93 Difference]: Finished difference Result 8808 states and 23202 transitions. [2022-02-15 11:31:01,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:01,264 INFO L225 Difference]: With dead ends: 8808 [2022-02-15 11:31:01,264 INFO L226 Difference]: Without dead ends: 8329 [2022-02-15 11:31:01,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:01,264 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 288 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2337 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 [2022-02-15 11:31:01,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2337 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-02-15 11:31:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7698. [2022-02-15 11:31:01,353 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) [2022-02-15 11:31:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20324 transitions. [2022-02-15 11:31:01,366 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20324 transitions. Word has length 109 [2022-02-15 11:31:01,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:01,366 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20324 transitions. [2022-02-15 11:31:01,366 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) [2022-02-15 11:31:01,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20324 transitions. [2022-02-15 11:31:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:01,375 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:01,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:01,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-02-15 11:31:01,375 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:01,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2095236026, now seen corresponding path program 126 times [2022-02-15 11:31:01,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:01,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489661636] [2022-02-15 11:31:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:01,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:01,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:01,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489661636] [2022-02-15 11:31:01,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489661636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:01,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:01,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:01,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259218983] [2022-02-15 11:31:01,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:01,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:01,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:01,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:01,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:01,493 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) [2022-02-15 11:31:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:01,876 INFO L93 Difference]: Finished difference Result 8646 states and 22761 transitions. [2022-02-15 11:31:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:31:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:01,888 INFO L225 Difference]: With dead ends: 8646 [2022-02-15 11:31:01,888 INFO L226 Difference]: Without dead ends: 8122 [2022-02-15 11:31:01,888 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 [2022-02-15 11:31:01,889 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 222 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:01,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2055 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8122 states. [2022-02-15 11:31:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8122 to 7650. [2022-02-15 11:31:01,990 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) [2022-02-15 11:31:02,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 20220 transitions. [2022-02-15 11:31:02,003 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 20220 transitions. Word has length 109 [2022-02-15 11:31:02,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:02,004 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 20220 transitions. [2022-02-15 11:31:02,004 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) [2022-02-15 11:31:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 20220 transitions. [2022-02-15 11:31:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:02,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:02,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:02,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-02-15 11:31:02,013 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash 533071862, now seen corresponding path program 127 times [2022-02-15 11:31:02,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:02,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540626120] [2022-02-15 11:31:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:02,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:02,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:02,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540626120] [2022-02-15 11:31:02,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540626120] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:02,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:02,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:02,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971121609] [2022-02-15 11:31:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:02,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:02,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:02,125 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) [2022-02-15 11:31:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:02,969 INFO L93 Difference]: Finished difference Result 9046 states and 23741 transitions. [2022-02-15 11:31:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 11:31:02,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:02,979 INFO L225 Difference]: With dead ends: 9046 [2022-02-15 11:31:02,980 INFO L226 Difference]: Without dead ends: 8163 [2022-02-15 11:31:02,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 11:31:02,980 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:02,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3418 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:31:02,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2022-02-15 11:31:03,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 7375. [2022-02-15 11:31:03,060 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) [2022-02-15 11:31:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 19520 transitions. [2022-02-15 11:31:03,072 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 19520 transitions. Word has length 109 [2022-02-15 11:31:03,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:03,072 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 19520 transitions. [2022-02-15 11:31:03,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 19520 transitions. [2022-02-15 11:31:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:03,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:03,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:03,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-02-15 11:31:03,081 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1937111454, now seen corresponding path program 128 times [2022-02-15 11:31:03,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:03,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760582984] [2022-02-15 11:31:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:03,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:03,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:03,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760582984] [2022-02-15 11:31:03,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760582984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:03,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:03,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:03,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611254676] [2022-02-15 11:31:03,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:03,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:03,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:03,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:03,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:03,195 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) [2022-02-15 11:31:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:03,963 INFO L93 Difference]: Finished difference Result 8883 states and 23436 transitions. [2022-02-15 11:31:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 11:31:03,963 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 [2022-02-15 11:31:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:03,975 INFO L225 Difference]: With dead ends: 8883 [2022-02-15 11:31:03,975 INFO L226 Difference]: Without dead ends: 8275 [2022-02-15 11:31:03,975 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 [2022-02-15 11:31:03,976 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 [2022-02-15 11:31:03,976 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] [2022-02-15 11:31:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2022-02-15 11:31:04,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 7379. [2022-02-15 11:31:04,070 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) [2022-02-15 11:31:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 19527 transitions. [2022-02-15 11:31:04,084 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 19527 transitions. Word has length 109 [2022-02-15 11:31:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:04,084 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 19527 transitions. [2022-02-15 11:31:04,084 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) [2022-02-15 11:31:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 19527 transitions. [2022-02-15 11:31:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:04,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:04,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:04,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-02-15 11:31:04,092 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash -333360286, now seen corresponding path program 129 times [2022-02-15 11:31:04,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:04,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946915550] [2022-02-15 11:31:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:04,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:04,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:04,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946915550] [2022-02-15 11:31:04,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946915550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:04,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:04,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:04,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126304112] [2022-02-15 11:31:04,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:04,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:04,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:04,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:04,205 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) [2022-02-15 11:31:04,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:04,889 INFO L93 Difference]: Finished difference Result 8758 states and 23107 transitions. [2022-02-15 11:31:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:31:04,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:04,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:04,902 INFO L225 Difference]: With dead ends: 8758 [2022-02-15 11:31:04,902 INFO L226 Difference]: Without dead ends: 8193 [2022-02-15 11:31:04,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:31:04,902 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 386 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2654 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 [2022-02-15 11:31:04,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2654 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:04,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2022-02-15 11:31:04,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 7383. [2022-02-15 11:31:04,995 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) [2022-02-15 11:31:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 19534 transitions. [2022-02-15 11:31:05,008 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 19534 transitions. Word has length 109 [2022-02-15 11:31:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:05,009 INFO L470 AbstractCegarLoop]: Abstraction has 7383 states and 19534 transitions. [2022-02-15 11:31:05,009 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) [2022-02-15 11:31:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 19534 transitions. [2022-02-15 11:31:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:05,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:05,017 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] [2022-02-15 11:31:05,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-02-15 11:31:05,017 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash 531070776, now seen corresponding path program 130 times [2022-02-15 11:31:05,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:05,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392505024] [2022-02-15 11:31:05,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:05,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:05,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:05,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392505024] [2022-02-15 11:31:05,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392505024] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:05,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:05,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:05,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625382182] [2022-02-15 11:31:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:05,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:05,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:05,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:05,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:05,130 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) [2022-02-15 11:31:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:05,664 INFO L93 Difference]: Finished difference Result 8633 states and 22778 transitions. [2022-02-15 11:31:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:05,675 INFO L225 Difference]: With dead ends: 8633 [2022-02-15 11:31:05,675 INFO L226 Difference]: Without dead ends: 8111 [2022-02-15 11:31:05,676 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 [2022-02-15 11:31:05,676 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 313 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:05,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 2583 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:05,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2022-02-15 11:31:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 7387. [2022-02-15 11:31:05,765 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) [2022-02-15 11:31:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19541 transitions. [2022-02-15 11:31:05,778 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19541 transitions. Word has length 109 [2022-02-15 11:31:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:05,778 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 19541 transitions. [2022-02-15 11:31:05,778 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) [2022-02-15 11:31:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19541 transitions. [2022-02-15 11:31:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:05,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:05,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:05,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-02-15 11:31:05,786 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:05,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:05,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1026844574, now seen corresponding path program 131 times [2022-02-15 11:31:05,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:05,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263102027] [2022-02-15 11:31:05,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:05,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:05,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:05,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263102027] [2022-02-15 11:31:05,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263102027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:05,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:05,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:05,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725875977] [2022-02-15 11:31:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:05,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:05,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:05,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:05,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:05,927 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) [2022-02-15 11:31:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:06,340 INFO L93 Difference]: Finished difference Result 8469 states and 22348 transitions. [2022-02-15 11:31:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:06,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:06,352 INFO L225 Difference]: With dead ends: 8469 [2022-02-15 11:31:06,352 INFO L226 Difference]: Without dead ends: 7990 [2022-02-15 11:31:06,352 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 [2022-02-15 11:31:06,352 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 240 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2752 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 [2022-02-15 11:31:06,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2752 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-02-15 11:31:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7391. [2022-02-15 11:31:06,443 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) [2022-02-15 11:31:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 19548 transitions. [2022-02-15 11:31:06,456 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 19548 transitions. Word has length 109 [2022-02-15 11:31:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:06,456 INFO L470 AbstractCegarLoop]: Abstraction has 7391 states and 19548 transitions. [2022-02-15 11:31:06,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 19548 transitions. [2022-02-15 11:31:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:06,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:06,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:06,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-02-15 11:31:06,465 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 600678544, now seen corresponding path program 132 times [2022-02-15 11:31:06,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:06,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76917817] [2022-02-15 11:31:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:06,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:06,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:06,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76917817] [2022-02-15 11:31:06,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76917817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:06,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:06,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:06,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101919273] [2022-02-15 11:31:06,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:06,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:06,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:06,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:06,571 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) [2022-02-15 11:31:06,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:06,971 INFO L93 Difference]: Finished difference Result 8387 states and 22127 transitions. [2022-02-15 11:31:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 11:31:06,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:06,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:06,982 INFO L225 Difference]: With dead ends: 8387 [2022-02-15 11:31:06,982 INFO L226 Difference]: Without dead ends: 7869 [2022-02-15 11:31:06,982 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 [2022-02-15 11:31:06,982 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 [2022-02-15 11:31:06,982 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] [2022-02-15 11:31:06,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-02-15 11:31:07,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7349. [2022-02-15 11:31:07,074 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) [2022-02-15 11:31:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 19453 transitions. [2022-02-15 11:31:07,087 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 19453 transitions. Word has length 109 [2022-02-15 11:31:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:07,087 INFO L470 AbstractCegarLoop]: Abstraction has 7349 states and 19453 transitions. [2022-02-15 11:31:07,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 19453 transitions. [2022-02-15 11:31:07,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:07,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:07,096 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] [2022-02-15 11:31:07,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-02-15 11:31:07,096 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:07,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:07,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1160979608, now seen corresponding path program 133 times [2022-02-15 11:31:07,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:07,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784154628] [2022-02-15 11:31:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:07,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:07,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:07,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784154628] [2022-02-15 11:31:07,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784154628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:07,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:07,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:07,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167786062] [2022-02-15 11:31:07,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:07,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:07,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:07,208 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) [2022-02-15 11:31:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:07,644 INFO L93 Difference]: Finished difference Result 8579 states and 22667 transitions. [2022-02-15 11:31:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:07,644 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 [2022-02-15 11:31:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:07,655 INFO L225 Difference]: With dead ends: 8579 [2022-02-15 11:31:07,655 INFO L226 Difference]: Without dead ends: 8100 [2022-02-15 11:31:07,656 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 [2022-02-15 11:31:07,656 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 240 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2838 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 [2022-02-15 11:31:07,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2838 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-02-15 11:31:07,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 7369. [2022-02-15 11:31:07,745 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) [2022-02-15 11:31:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19504 transitions. [2022-02-15 11:31:07,758 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19504 transitions. Word has length 109 [2022-02-15 11:31:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:07,758 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19504 transitions. [2022-02-15 11:31:07,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:07,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19504 transitions. [2022-02-15 11:31:07,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:07,767 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:07,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:07,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-02-15 11:31:07,767 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1506464570, now seen corresponding path program 134 times [2022-02-15 11:31:07,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:07,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63430020] [2022-02-15 11:31:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:07,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:07,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:07,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63430020] [2022-02-15 11:31:07,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63430020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:07,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:07,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:07,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018521257] [2022-02-15 11:31:07,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:07,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:07,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:07,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:07,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:07,875 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) [2022-02-15 11:31:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:08,364 INFO L93 Difference]: Finished difference Result 8537 states and 22556 transitions. [2022-02-15 11:31:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:08,375 INFO L225 Difference]: With dead ends: 8537 [2022-02-15 11:31:08,375 INFO L226 Difference]: Without dead ends: 8057 [2022-02-15 11:31:08,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:31:08,376 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 221 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2845 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 [2022-02-15 11:31:08,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2845 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-02-15 11:31:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7365. [2022-02-15 11:31:08,462 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) [2022-02-15 11:31:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19493 transitions. [2022-02-15 11:31:08,474 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19493 transitions. Word has length 109 [2022-02-15 11:31:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:08,474 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19493 transitions. [2022-02-15 11:31:08,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19493 transitions. [2022-02-15 11:31:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:08,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:08,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:08,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-02-15 11:31:08,482 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:08,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1667445386, now seen corresponding path program 135 times [2022-02-15 11:31:08,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:08,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457995426] [2022-02-15 11:31:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:08,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:08,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:08,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457995426] [2022-02-15 11:31:08,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457995426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:08,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:08,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:08,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721964673] [2022-02-15 11:31:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:08,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:08,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:08,592 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) [2022-02-15 11:31:09,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:09,110 INFO L93 Difference]: Finished difference Result 8625 states and 22778 transitions. [2022-02-15 11:31:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 11:31:09,110 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:09,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:09,120 INFO L225 Difference]: With dead ends: 8625 [2022-02-15 11:31:09,121 INFO L226 Difference]: Without dead ends: 8105 [2022-02-15 11:31:09,121 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 [2022-02-15 11:31:09,121 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 289 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2666 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 [2022-02-15 11:31:09,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2666 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-02-15 11:31:09,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7361. [2022-02-15 11:31:09,206 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) [2022-02-15 11:31:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19482 transitions. [2022-02-15 11:31:09,218 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19482 transitions. Word has length 109 [2022-02-15 11:31:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:09,218 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19482 transitions. [2022-02-15 11:31:09,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19482 transitions. [2022-02-15 11:31:09,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:09,227 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:09,227 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] [2022-02-15 11:31:09,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-02-15 11:31:09,227 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1740075110, now seen corresponding path program 136 times [2022-02-15 11:31:09,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:09,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131890084] [2022-02-15 11:31:09,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:09,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:09,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:09,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131890084] [2022-02-15 11:31:09,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131890084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:09,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:09,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:09,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877223605] [2022-02-15 11:31:09,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:09,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:09,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:09,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:09,355 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) [2022-02-15 11:31:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:09,905 INFO L93 Difference]: Finished difference Result 8739 states and 23078 transitions. [2022-02-15 11:31:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:31:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:09,916 INFO L225 Difference]: With dead ends: 8739 [2022-02-15 11:31:09,916 INFO L226 Difference]: Without dead ends: 8217 [2022-02-15 11:31:09,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:09,917 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 328 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:09,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 3206 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:31:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-02-15 11:31:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7365. [2022-02-15 11:31:10,003 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) [2022-02-15 11:31:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19489 transitions. [2022-02-15 11:31:10,017 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19489 transitions. Word has length 109 [2022-02-15 11:31:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:10,017 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19489 transitions. [2022-02-15 11:31:10,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19489 transitions. [2022-02-15 11:31:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:10,026 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:10,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:10,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-02-15 11:31:10,026 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash 182159760, now seen corresponding path program 137 times [2022-02-15 11:31:10,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:10,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083341270] [2022-02-15 11:31:10,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:10,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:10,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:10,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083341270] [2022-02-15 11:31:10,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083341270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:10,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:10,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:10,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197629886] [2022-02-15 11:31:10,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:10,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:10,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:10,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:10,141 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) [2022-02-15 11:31:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:10,591 INFO L93 Difference]: Finished difference Result 8575 states and 22648 transitions. [2022-02-15 11:31:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:10,592 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 [2022-02-15 11:31:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:10,603 INFO L225 Difference]: With dead ends: 8575 [2022-02-15 11:31:10,603 INFO L226 Difference]: Without dead ends: 8096 [2022-02-15 11:31:10,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:10,603 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 259 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2499 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 [2022-02-15 11:31:10,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2499 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-02-15 11:31:10,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7369. [2022-02-15 11:31:10,694 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) [2022-02-15 11:31:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19496 transitions. [2022-02-15 11:31:10,707 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19496 transitions. Word has length 109 [2022-02-15 11:31:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:10,708 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19496 transitions. [2022-02-15 11:31:10,708 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) [2022-02-15 11:31:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19496 transitions. [2022-02-15 11:31:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:10,716 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:10,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:10,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-02-15 11:31:10,717 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682878, now seen corresponding path program 138 times [2022-02-15 11:31:10,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:10,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414853740] [2022-02-15 11:31:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:10,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:10,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:10,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414853740] [2022-02-15 11:31:10,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414853740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:10,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:10,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:10,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017345374] [2022-02-15 11:31:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:10,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:10,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:10,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:10,827 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) [2022-02-15 11:31:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:11,284 INFO L93 Difference]: Finished difference Result 8509 states and 22471 transitions. [2022-02-15 11:31:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:11,285 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 [2022-02-15 11:31:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:11,296 INFO L225 Difference]: With dead ends: 8509 [2022-02-15 11:31:11,296 INFO L226 Difference]: Without dead ends: 8021 [2022-02-15 11:31:11,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:11,296 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 238 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2455 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 [2022-02-15 11:31:11,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2455 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2022-02-15 11:31:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7357. [2022-02-15 11:31:11,384 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) [2022-02-15 11:31:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19471 transitions. [2022-02-15 11:31:11,397 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19471 transitions. Word has length 109 [2022-02-15 11:31:11,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:11,397 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19471 transitions. [2022-02-15 11:31:11,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19471 transitions. [2022-02-15 11:31:11,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:11,405 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:11,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:11,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-02-15 11:31:11,405 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:11,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 527338778, now seen corresponding path program 139 times [2022-02-15 11:31:11,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:11,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811682476] [2022-02-15 11:31:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:11,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:11,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:11,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811682476] [2022-02-15 11:31:11,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811682476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:11,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:11,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:11,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405583528] [2022-02-15 11:31:11,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:11,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:11,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:11,521 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) [2022-02-15 11:31:12,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:12,245 INFO L93 Difference]: Finished difference Result 8872 states and 23425 transitions. [2022-02-15 11:31:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:31:12,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:12,257 INFO L225 Difference]: With dead ends: 8872 [2022-02-15 11:31:12,257 INFO L226 Difference]: Without dead ends: 8307 [2022-02-15 11:31:12,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:31:12,258 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 401 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2821 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 [2022-02-15 11:31:12,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 2821 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2022-02-15 11:31:12,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 7361. [2022-02-15 11:31:12,345 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) [2022-02-15 11:31:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19478 transitions. [2022-02-15 11:31:12,357 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19478 transitions. Word has length 109 [2022-02-15 11:31:12,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:12,357 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19478 transitions. [2022-02-15 11:31:12,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19478 transitions. [2022-02-15 11:31:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:12,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:12,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:12,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-02-15 11:31:12,366 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1391769840, now seen corresponding path program 140 times [2022-02-15 11:31:12,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:12,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935080196] [2022-02-15 11:31:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:12,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:12,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:12,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935080196] [2022-02-15 11:31:12,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935080196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:12,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:12,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:12,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494995254] [2022-02-15 11:31:12,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:12,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:12,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:12,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:12,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:12,482 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) [2022-02-15 11:31:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:13,057 INFO L93 Difference]: Finished difference Result 8747 states and 23096 transitions. [2022-02-15 11:31:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:13,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:13,069 INFO L225 Difference]: With dead ends: 8747 [2022-02-15 11:31:13,069 INFO L226 Difference]: Without dead ends: 8225 [2022-02-15 11:31:13,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:13,070 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 332 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2294 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 [2022-02-15 11:31:13,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 2294 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2022-02-15 11:31:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 7365. [2022-02-15 11:31:13,162 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) [2022-02-15 11:31:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19485 transitions. [2022-02-15 11:31:13,174 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19485 transitions. Word has length 109 [2022-02-15 11:31:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:13,174 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19485 transitions. [2022-02-15 11:31:13,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19485 transitions. [2022-02-15 11:31:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:13,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:13,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:13,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-02-15 11:31:13,183 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash -166145510, now seen corresponding path program 141 times [2022-02-15 11:31:13,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:13,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37988718] [2022-02-15 11:31:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:13,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:13,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:13,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37988718] [2022-02-15 11:31:13,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37988718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:13,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:13,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:13,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60343176] [2022-02-15 11:31:13,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:13,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:13,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:13,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:13,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:13,300 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) [2022-02-15 11:31:13,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:13,758 INFO L93 Difference]: Finished difference Result 8583 states and 22666 transitions. [2022-02-15 11:31:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:13,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:13,768 INFO L225 Difference]: With dead ends: 8583 [2022-02-15 11:31:13,769 INFO L226 Difference]: Without dead ends: 8104 [2022-02-15 11:31:13,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:13,769 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 254 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2691 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 [2022-02-15 11:31:13,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 2691 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2022-02-15 11:31:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7369. [2022-02-15 11:31:13,852 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) [2022-02-15 11:31:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19492 transitions. [2022-02-15 11:31:13,864 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19492 transitions. Word has length 109 [2022-02-15 11:31:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:13,864 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19492 transitions. [2022-02-15 11:31:13,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19492 transitions. [2022-02-15 11:31:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:13,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:13,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:13,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-02-15 11:31:13,872 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1461377608, now seen corresponding path program 142 times [2022-02-15 11:31:13,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:13,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032415855] [2022-02-15 11:31:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:13,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:13,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:13,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032415855] [2022-02-15 11:31:13,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032415855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:13,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:13,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:13,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69564908] [2022-02-15 11:31:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:13,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:13,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:13,985 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) [2022-02-15 11:31:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:14,446 INFO L93 Difference]: Finished difference Result 8509 states and 22467 transitions. [2022-02-15 11:31:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:14,457 INFO L225 Difference]: With dead ends: 8509 [2022-02-15 11:31:14,457 INFO L226 Difference]: Without dead ends: 8017 [2022-02-15 11:31:14,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:14,458 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 228 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3019 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 [2022-02-15 11:31:14,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3019 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-02-15 11:31:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7353. [2022-02-15 11:31:14,542 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) [2022-02-15 11:31:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 19460 transitions. [2022-02-15 11:31:14,554 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 19460 transitions. Word has length 109 [2022-02-15 11:31:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:14,554 INFO L470 AbstractCegarLoop]: Abstraction has 7353 states and 19460 transitions. [2022-02-15 11:31:14,554 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) [2022-02-15 11:31:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 19460 transitions. [2022-02-15 11:31:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:14,563 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:14,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:14,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-02-15 11:31:14,563 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:14,563 INFO L85 PathProgramCache]: Analyzing trace with hash 879815300, now seen corresponding path program 143 times [2022-02-15 11:31:14,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:14,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984620325] [2022-02-15 11:31:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:14,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:14,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:14,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984620325] [2022-02-15 11:31:14,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984620325] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:14,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:14,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:14,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042392100] [2022-02-15 11:31:14,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:14,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:14,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:14,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:14,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:14,678 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) [2022-02-15 11:31:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:15,487 INFO L93 Difference]: Finished difference Result 8861 states and 23376 transitions. [2022-02-15 11:31:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 11:31:15,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:15,498 INFO L225 Difference]: With dead ends: 8861 [2022-02-15 11:31:15,498 INFO L226 Difference]: Without dead ends: 8253 [2022-02-15 11:31:15,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 11:31:15,498 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:15,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 3286 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:31:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-02-15 11:31:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 7357. [2022-02-15 11:31:15,580 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) [2022-02-15 11:31:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19467 transitions. [2022-02-15 11:31:15,594 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19467 transitions. Word has length 109 [2022-02-15 11:31:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:15,594 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19467 transitions. [2022-02-15 11:31:15,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19467 transitions. [2022-02-15 11:31:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:15,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:15,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:15,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-02-15 11:31:15,602 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:15,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:15,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1390656440, now seen corresponding path program 144 times [2022-02-15 11:31:15,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:15,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642431733] [2022-02-15 11:31:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:15,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:15,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:15,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642431733] [2022-02-15 11:31:15,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642431733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:15,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:15,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:15,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921685332] [2022-02-15 11:31:15,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:15,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:15,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:15,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:15,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:15,723 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) [2022-02-15 11:31:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:16,479 INFO L93 Difference]: Finished difference Result 8744 states and 23069 transitions. [2022-02-15 11:31:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:31:16,479 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:16,488 INFO L225 Difference]: With dead ends: 8744 [2022-02-15 11:31:16,488 INFO L226 Difference]: Without dead ends: 8179 [2022-02-15 11:31:16,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:31:16,489 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 395 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2564 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 [2022-02-15 11:31:16,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 2564 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-02-15 11:31:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7361. [2022-02-15 11:31:16,569 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) [2022-02-15 11:31:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19474 transitions. [2022-02-15 11:31:16,582 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19474 transitions. Word has length 109 [2022-02-15 11:31:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:16,582 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19474 transitions. [2022-02-15 11:31:16,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19474 transitions. [2022-02-15 11:31:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:16,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:16,591 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] [2022-02-15 11:31:16,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-02-15 11:31:16,591 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:16,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash -526225378, now seen corresponding path program 145 times [2022-02-15 11:31:16,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:16,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128815791] [2022-02-15 11:31:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:16,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:16,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:16,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:16,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128815791] [2022-02-15 11:31:16,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128815791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:16,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:16,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:16,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497027774] [2022-02-15 11:31:16,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:16,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:16,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:16,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:16,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:16,705 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) [2022-02-15 11:31:17,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:17,248 INFO L93 Difference]: Finished difference Result 8627 states and 22762 transitions. [2022-02-15 11:31:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:17,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:17,259 INFO L225 Difference]: With dead ends: 8627 [2022-02-15 11:31:17,259 INFO L226 Difference]: Without dead ends: 8105 [2022-02-15 11:31:17,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:17,260 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 323 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2978 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 [2022-02-15 11:31:17,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2978 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:17,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-02-15 11:31:17,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7365. [2022-02-15 11:31:17,342 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) [2022-02-15 11:31:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19481 transitions. [2022-02-15 11:31:17,354 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19481 transitions. Word has length 109 [2022-02-15 11:31:17,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:17,354 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19481 transitions. [2022-02-15 11:31:17,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19481 transitions. [2022-02-15 11:31:17,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:17,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:17,362 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] [2022-02-15 11:31:17,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-02-15 11:31:17,363 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:17,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2084140728, now seen corresponding path program 146 times [2022-02-15 11:31:17,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:17,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964695318] [2022-02-15 11:31:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:17,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:17,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:17,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964695318] [2022-02-15 11:31:17,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964695318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:17,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:17,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:17,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215458150] [2022-02-15 11:31:17,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:17,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:17,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:17,479 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) [2022-02-15 11:31:17,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:17,932 INFO L93 Difference]: Finished difference Result 8479 states and 22376 transitions. [2022-02-15 11:31:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:17,932 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 [2022-02-15 11:31:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:17,943 INFO L225 Difference]: With dead ends: 8479 [2022-02-15 11:31:17,943 INFO L226 Difference]: Without dead ends: 8000 [2022-02-15 11:31:17,944 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 [2022-02-15 11:31:17,944 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 249 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3075 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 [2022-02-15 11:31:17,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3075 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2022-02-15 11:31:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7369. [2022-02-15 11:31:18,026 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) [2022-02-15 11:31:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19488 transitions. [2022-02-15 11:31:18,038 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19488 transitions. Word has length 109 [2022-02-15 11:31:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:18,039 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19488 transitions. [2022-02-15 11:31:18,039 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) [2022-02-15 11:31:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19488 transitions. [2022-02-15 11:31:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:18,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:18,050 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] [2022-02-15 11:31:18,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-02-15 11:31:18,050 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:18,051 INFO L85 PathProgramCache]: Analyzing trace with hash -456617610, now seen corresponding path program 147 times [2022-02-15 11:31:18,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:18,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409058307] [2022-02-15 11:31:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:18,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:18,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:18,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409058307] [2022-02-15 11:31:18,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409058307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:18,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:18,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:18,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668406466] [2022-02-15 11:31:18,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:18,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:18,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:18,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:18,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:18,173 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) [2022-02-15 11:31:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:18,593 INFO L93 Difference]: Finished difference Result 8365 states and 22067 transitions. [2022-02-15 11:31:18,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:31:18,594 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 [2022-02-15 11:31:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:18,602 INFO L225 Difference]: With dead ends: 8365 [2022-02-15 11:31:18,602 INFO L226 Difference]: Without dead ends: 7843 [2022-02-15 11:31:18,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:31:18,603 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:18,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2569 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7843 states. [2022-02-15 11:31:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7843 to 7323. [2022-02-15 11:31:18,677 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) [2022-02-15 11:31:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 19386 transitions. [2022-02-15 11:31:18,689 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 19386 transitions. Word has length 109 [2022-02-15 11:31:18,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:18,689 INFO L470 AbstractCegarLoop]: Abstraction has 7323 states and 19386 transitions. [2022-02-15 11:31:18,689 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) [2022-02-15 11:31:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 19386 transitions. [2022-02-15 11:31:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:18,696 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:18,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:18,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-02-15 11:31:18,697 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:18,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:18,697 INFO L85 PathProgramCache]: Analyzing trace with hash -993153118, now seen corresponding path program 148 times [2022-02-15 11:31:18,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:18,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895679383] [2022-02-15 11:31:18,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:18,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:18,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:18,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895679383] [2022-02-15 11:31:18,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895679383] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:18,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:18,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:18,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413688913] [2022-02-15 11:31:18,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:18,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:18,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:18,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:18,810 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) [2022-02-15 11:31:19,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:19,227 INFO L93 Difference]: Finished difference Result 8633 states and 22820 transitions. [2022-02-15 11:31:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:19,227 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:19,238 INFO L225 Difference]: With dead ends: 8633 [2022-02-15 11:31:19,238 INFO L226 Difference]: Without dead ends: 8154 [2022-02-15 11:31:19,239 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 [2022-02-15 11:31:19,239 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 234 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:19,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2205 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-02-15 11:31:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7347. [2022-02-15 11:31:19,323 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) [2022-02-15 11:31:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19448 transitions. [2022-02-15 11:31:19,335 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19448 transitions. Word has length 109 [2022-02-15 11:31:19,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:19,336 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19448 transitions. [2022-02-15 11:31:19,336 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) [2022-02-15 11:31:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19448 transitions. [2022-02-15 11:31:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:19,343 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:19,344 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] [2022-02-15 11:31:19,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-02-15 11:31:19,344 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash 634370000, now seen corresponding path program 149 times [2022-02-15 11:31:19,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:19,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548625281] [2022-02-15 11:31:19,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:19,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:19,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:19,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548625281] [2022-02-15 11:31:19,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548625281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:19,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:19,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:19,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142015451] [2022-02-15 11:31:19,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:19,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:19,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:19,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:19,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:19,453 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) [2022-02-15 11:31:19,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:19,927 INFO L93 Difference]: Finished difference Result 8599 states and 22731 transitions. [2022-02-15 11:31:19,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:19,927 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 [2022-02-15 11:31:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:19,938 INFO L225 Difference]: With dead ends: 8599 [2022-02-15 11:31:19,938 INFO L226 Difference]: Without dead ends: 8119 [2022-02-15 11:31:19,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:31:19,939 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2725 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 [2022-02-15 11:31:19,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2725 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:19,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-02-15 11:31:20,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7343. [2022-02-15 11:31:20,026 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) [2022-02-15 11:31:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19437 transitions. [2022-02-15 11:31:20,038 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19437 transitions. Word has length 109 [2022-02-15 11:31:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:20,038 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19437 transitions. [2022-02-15 11:31:20,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19437 transitions. [2022-02-15 11:31:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:20,046 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:20,046 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] [2022-02-15 11:31:20,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-02-15 11:31:20,046 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash -486687340, now seen corresponding path program 150 times [2022-02-15 11:31:20,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:20,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795423430] [2022-02-15 11:31:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:20,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:20,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:20,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795423430] [2022-02-15 11:31:20,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795423430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:20,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:20,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:20,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068226490] [2022-02-15 11:31:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:20,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:20,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:20,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:20,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:20,156 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) [2022-02-15 11:31:20,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:20,751 INFO L93 Difference]: Finished difference Result 8635 states and 22826 transitions. [2022-02-15 11:31:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:20,751 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 [2022-02-15 11:31:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:20,762 INFO L225 Difference]: With dead ends: 8635 [2022-02-15 11:31:20,762 INFO L226 Difference]: Without dead ends: 8115 [2022-02-15 11:31:20,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-02-15 11:31:20,762 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 280 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2639 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 [2022-02-15 11:31:20,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2639 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-02-15 11:31:20,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7339. [2022-02-15 11:31:20,851 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) [2022-02-15 11:31:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19426 transitions. [2022-02-15 11:31:20,864 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19426 transitions. Word has length 109 [2022-02-15 11:31:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:20,864 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19426 transitions. [2022-02-15 11:31:20,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19426 transitions. [2022-02-15 11:31:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:20,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:20,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:20,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-02-15 11:31:20,872 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:20,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1011822876, now seen corresponding path program 151 times [2022-02-15 11:31:20,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:20,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734753384] [2022-02-15 11:31:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:20,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:20,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:20,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734753384] [2022-02-15 11:31:20,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734753384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:20,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:20,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:20,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722606084] [2022-02-15 11:31:20,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:20,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:20,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:20,993 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) [2022-02-15 11:31:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:21,648 INFO L93 Difference]: Finished difference Result 8751 states and 23117 transitions. [2022-02-15 11:31:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 11:31:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:21,659 INFO L225 Difference]: With dead ends: 8751 [2022-02-15 11:31:21,659 INFO L226 Difference]: Without dead ends: 8191 [2022-02-15 11:31:21,660 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 [2022-02-15 11:31:21,660 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2959 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 [2022-02-15 11:31:21,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2959 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:21,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8191 states. [2022-02-15 11:31:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8191 to 7335. [2022-02-15 11:31:21,745 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) [2022-02-15 11:31:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19415 transitions. [2022-02-15 11:31:21,756 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19415 transitions. Word has length 109 [2022-02-15 11:31:21,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:21,757 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19415 transitions. [2022-02-15 11:31:21,757 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) [2022-02-15 11:31:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19415 transitions. [2022-02-15 11:31:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:21,764 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:21,764 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] [2022-02-15 11:31:21,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-02-15 11:31:21,765 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1202136280, now seen corresponding path program 152 times [2022-02-15 11:31:21,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:21,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468664076] [2022-02-15 11:31:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:21,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:21,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:21,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468664076] [2022-02-15 11:31:21,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468664076] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:21,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:21,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:21,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602898265] [2022-02-15 11:31:21,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:21,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:21,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:21,883 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) [2022-02-15 11:31:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:22,338 INFO L93 Difference]: Finished difference Result 8701 states and 23003 transitions. [2022-02-15 11:31:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:22,338 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 [2022-02-15 11:31:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:22,349 INFO L225 Difference]: With dead ends: 8701 [2022-02-15 11:31:22,349 INFO L226 Difference]: Without dead ends: 8222 [2022-02-15 11:31:22,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:31:22,350 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2497 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 [2022-02-15 11:31:22,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2497 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2022-02-15 11:31:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 7347. [2022-02-15 11:31:22,437 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) [2022-02-15 11:31:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-15 11:31:22,448 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-15 11:31:22,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:22,449 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-15 11:31:22,449 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) [2022-02-15 11:31:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-15 11:31:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:22,457 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:22,457 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] [2022-02-15 11:31:22,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-02-15 11:31:22,457 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:22,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 425386838, now seen corresponding path program 153 times [2022-02-15 11:31:22,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:22,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985469999] [2022-02-15 11:31:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:22,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:22,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:22,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985469999] [2022-02-15 11:31:22,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985469999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:22,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:22,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:22,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704246943] [2022-02-15 11:31:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:22,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:22,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:22,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:22,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:22,575 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) [2022-02-15 11:31:23,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:23,048 INFO L93 Difference]: Finished difference Result 8659 states and 22892 transitions. [2022-02-15 11:31:23,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:23,048 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 [2022-02-15 11:31:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:23,059 INFO L225 Difference]: With dead ends: 8659 [2022-02-15 11:31:23,059 INFO L226 Difference]: Without dead ends: 8179 [2022-02-15 11:31:23,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:23,060 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 236 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:23,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1976 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-02-15 11:31:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7343. [2022-02-15 11:31:23,144 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) [2022-02-15 11:31:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-15 11:31:23,156 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-15 11:31:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:23,156 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-15 11:31:23,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-15 11:31:23,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:23,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:23,164 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] [2022-02-15 11:31:23,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-02-15 11:31:23,164 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash -695670502, now seen corresponding path program 154 times [2022-02-15 11:31:23,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:23,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982938908] [2022-02-15 11:31:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:23,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:23,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:23,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982938908] [2022-02-15 11:31:23,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982938908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:23,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:23,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:23,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391442763] [2022-02-15 11:31:23,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:23,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:23,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:23,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:23,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:23,276 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) [2022-02-15 11:31:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:23,872 INFO L93 Difference]: Finished difference Result 8787 states and 23224 transitions. [2022-02-15 11:31:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:31:23,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:23,884 INFO L225 Difference]: With dead ends: 8787 [2022-02-15 11:31:23,884 INFO L226 Difference]: Without dead ends: 8267 [2022-02-15 11:31:23,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:23,885 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 298 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:23,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2957 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:23,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-02-15 11:31:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7339. [2022-02-15 11:31:23,971 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) [2022-02-15 11:31:23,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-15 11:31:23,984 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-15 11:31:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:23,984 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-15 11:31:23,984 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) [2022-02-15 11:31:23,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-15 11:31:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:23,992 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:23,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:23,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-02-15 11:31:23,992 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash -623040778, now seen corresponding path program 155 times [2022-02-15 11:31:23,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:23,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19677575] [2022-02-15 11:31:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:24,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:24,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19677575] [2022-02-15 11:31:24,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19677575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:24,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:24,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:24,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357571609] [2022-02-15 11:31:24,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:24,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:24,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:24,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:24,108 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) [2022-02-15 11:31:24,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:24,696 INFO L93 Difference]: Finished difference Result 8789 states and 23216 transitions. [2022-02-15 11:31:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:31:24,696 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 [2022-02-15 11:31:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:24,707 INFO L225 Difference]: With dead ends: 8789 [2022-02-15 11:31:24,707 INFO L226 Difference]: Without dead ends: 8267 [2022-02-15 11:31:24,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:31:24,708 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 306 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2666 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 [2022-02-15 11:31:24,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2666 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-02-15 11:31:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7343. [2022-02-15 11:31:24,792 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) [2022-02-15 11:31:24,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-15 11:31:24,804 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-15 11:31:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:24,804 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-15 11:31:24,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-15 11:31:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:24,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:24,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:24,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-02-15 11:31:24,812 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:24,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2114011168, now seen corresponding path program 156 times [2022-02-15 11:31:24,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:24,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552213928] [2022-02-15 11:31:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:24,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:24,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:24,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552213928] [2022-02-15 11:31:24,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552213928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:24,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:24,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:24,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136004342] [2022-02-15 11:31:24,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:24,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:24,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:24,929 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) [2022-02-15 11:31:25,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:25,408 INFO L93 Difference]: Finished difference Result 8641 states and 22830 transitions. [2022-02-15 11:31:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:25,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:25,419 INFO L225 Difference]: With dead ends: 8641 [2022-02-15 11:31:25,420 INFO L226 Difference]: Without dead ends: 8162 [2022-02-15 11:31:25,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:25,420 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 [2022-02-15 11:31:25,420 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] [2022-02-15 11:31:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-02-15 11:31:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7347. [2022-02-15 11:31:25,508 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) [2022-02-15 11:31:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-15 11:31:25,521 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-15 11:31:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:25,521 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-15 11:31:25,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-15 11:31:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:25,530 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:25,530 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] [2022-02-15 11:31:25,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-02-15 11:31:25,530 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:25,530 INFO L85 PathProgramCache]: Analyzing trace with hash -553433010, now seen corresponding path program 157 times [2022-02-15 11:31:25,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:25,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053457266] [2022-02-15 11:31:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:25,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:25,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:25,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053457266] [2022-02-15 11:31:25,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053457266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:25,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:25,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:25,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696467466] [2022-02-15 11:31:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:25,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:25,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:25,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:25,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:25,651 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) [2022-02-15 11:31:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:26,123 INFO L93 Difference]: Finished difference Result 8559 states and 22609 transitions. [2022-02-15 11:31:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:26,124 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:26,134 INFO L225 Difference]: With dead ends: 8559 [2022-02-15 11:31:26,135 INFO L226 Difference]: Without dead ends: 8067 [2022-02-15 11:31:26,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:26,135 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 211 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2563 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 [2022-02-15 11:31:26,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2563 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-02-15 11:31:26,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 7331. [2022-02-15 11:31:26,248 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) [2022-02-15 11:31:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19404 transitions. [2022-02-15 11:31:26,260 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19404 transitions. Word has length 109 [2022-02-15 11:31:26,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:26,261 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19404 transitions. [2022-02-15 11:31:26,261 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) [2022-02-15 11:31:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19404 transitions. [2022-02-15 11:31:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:26,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:26,269 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] [2022-02-15 11:31:26,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-02-15 11:31:26,269 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:26,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1250172384, now seen corresponding path program 158 times [2022-02-15 11:31:26,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:26,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032463798] [2022-02-15 11:31:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:26,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:26,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:26,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032463798] [2022-02-15 11:31:26,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032463798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:26,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:26,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:26,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444442155] [2022-02-15 11:31:26,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:26,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:26,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:26,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:26,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:26,408 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) [2022-02-15 11:31:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:26,863 INFO L93 Difference]: Finished difference Result 8737 states and 23102 transitions. [2022-02-15 11:31:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:26,863 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 [2022-02-15 11:31:26,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:26,874 INFO L225 Difference]: With dead ends: 8737 [2022-02-15 11:31:26,874 INFO L226 Difference]: Without dead ends: 8258 [2022-02-15 11:31:26,875 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 [2022-02-15 11:31:26,875 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 242 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2931 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 [2022-02-15 11:31:26,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2931 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-02-15 11:31:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-02-15 11:31:26,960 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) [2022-02-15 11:31:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-15 11:31:26,972 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-15 11:31:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:26,972 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-15 11:31:26,972 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) [2022-02-15 11:31:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-15 11:31:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:26,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:26,981 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] [2022-02-15 11:31:26,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-02-15 11:31:26,981 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 377350734, now seen corresponding path program 159 times [2022-02-15 11:31:26,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:26,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702993964] [2022-02-15 11:31:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:26,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:27,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:27,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702993964] [2022-02-15 11:31:27,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702993964] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:27,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:27,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:27,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119955749] [2022-02-15 11:31:27,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:27,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:27,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:27,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:27,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:27,103 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) [2022-02-15 11:31:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:27,584 INFO L93 Difference]: Finished difference Result 8695 states and 22991 transitions. [2022-02-15 11:31:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:27,595 INFO L225 Difference]: With dead ends: 8695 [2022-02-15 11:31:27,595 INFO L226 Difference]: Without dead ends: 8215 [2022-02-15 11:31:27,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 11:31:27,596 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 224 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2903 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 [2022-02-15 11:31:27,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2903 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:27,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-02-15 11:31:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 7343. [2022-02-15 11:31:27,678 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) [2022-02-15 11:31:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-15 11:31:27,690 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-15 11:31:27,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:27,690 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-15 11:31:27,690 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) [2022-02-15 11:31:27,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-15 11:31:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:27,698 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:27,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:27,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-02-15 11:31:27,698 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash -743706606, now seen corresponding path program 160 times [2022-02-15 11:31:27,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:27,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319462013] [2022-02-15 11:31:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:27,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:27,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:27,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319462013] [2022-02-15 11:31:27,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319462013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:27,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:27,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:27,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114202897] [2022-02-15 11:31:27,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:27,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:27,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:27,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:27,811 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) [2022-02-15 11:31:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:28,373 INFO L93 Difference]: Finished difference Result 8803 states and 23268 transitions. [2022-02-15 11:31:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:31:28,374 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 [2022-02-15 11:31:28,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:28,384 INFO L225 Difference]: With dead ends: 8803 [2022-02-15 11:31:28,385 INFO L226 Difference]: Without dead ends: 8283 [2022-02-15 11:31:28,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:28,385 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 293 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 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 [2022-02-15 11:31:28,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2787 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:28,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-02-15 11:31:28,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7339. [2022-02-15 11:31:28,468 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) [2022-02-15 11:31:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-15 11:31:28,480 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-15 11:31:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:28,480 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-15 11:31:28,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:28,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-15 11:31:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:28,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:28,488 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] [2022-02-15 11:31:28,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-02-15 11:31:28,488 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash -671076882, now seen corresponding path program 161 times [2022-02-15 11:31:28,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:28,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181353240] [2022-02-15 11:31:28,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:28,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:28,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:28,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181353240] [2022-02-15 11:31:28,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181353240] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:28,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:28,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:28,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681768990] [2022-02-15 11:31:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:28,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:28,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:28,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:28,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:28,601 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) [2022-02-15 11:31:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:29,200 INFO L93 Difference]: Finished difference Result 8901 states and 23524 transitions. [2022-02-15 11:31:29,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:31:29,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:29,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:29,215 INFO L225 Difference]: With dead ends: 8901 [2022-02-15 11:31:29,219 INFO L226 Difference]: Without dead ends: 8379 [2022-02-15 11:31:29,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:29,220 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 317 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:29,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 2866 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:31:29,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-02-15 11:31:29,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 7343. [2022-02-15 11:31:29,313 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) [2022-02-15 11:31:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-15 11:31:29,326 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-15 11:31:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:29,326 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-15 11:31:29,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-15 11:31:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:29,334 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:29,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:29,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-02-15 11:31:29,334 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:29,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:29,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975064, now seen corresponding path program 162 times [2022-02-15 11:31:29,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:29,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069928163] [2022-02-15 11:31:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:29,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:29,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:29,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:29,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069928163] [2022-02-15 11:31:29,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069928163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:29,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:29,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:29,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357429888] [2022-02-15 11:31:29,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:29,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:29,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:29,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:29,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:29,452 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) [2022-02-15 11:31:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:29,918 INFO L93 Difference]: Finished difference Result 8737 states and 23094 transitions. [2022-02-15 11:31:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:29,919 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 [2022-02-15 11:31:29,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:29,930 INFO L225 Difference]: With dead ends: 8737 [2022-02-15 11:31:29,930 INFO L226 Difference]: Without dead ends: 8258 [2022-02-15 11:31:29,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:29,931 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 242 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2510 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 [2022-02-15 11:31:29,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2510 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-02-15 11:31:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-02-15 11:31:30,022 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) [2022-02-15 11:31:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-15 11:31:30,035 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-15 11:31:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:30,035 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-15 11:31:30,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-15 11:31:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:30,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:30,043 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] [2022-02-15 11:31:30,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-02-15 11:31:30,043 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:30,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash -601469114, now seen corresponding path program 163 times [2022-02-15 11:31:30,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:30,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968685303] [2022-02-15 11:31:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:30,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:30,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:30,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968685303] [2022-02-15 11:31:30,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968685303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:30,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:30,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:30,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098630593] [2022-02-15 11:31:30,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:30,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:30,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:30,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:30,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:30,157 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) [2022-02-15 11:31:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:30,619 INFO L93 Difference]: Finished difference Result 8671 states and 22917 transitions. [2022-02-15 11:31:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:30,620 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 [2022-02-15 11:31:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:30,630 INFO L225 Difference]: With dead ends: 8671 [2022-02-15 11:31:30,630 INFO L226 Difference]: Without dead ends: 8183 [2022-02-15 11:31:30,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:30,631 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 226 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2562 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 [2022-02-15 11:31:30,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2562 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2022-02-15 11:31:30,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 7335. [2022-02-15 11:31:30,714 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) [2022-02-15 11:31:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-02-15 11:31:30,725 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-02-15 11:31:30,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:30,726 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-02-15 11:31:30,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-02-15 11:31:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:30,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:30,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:30,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-02-15 11:31:30,734 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1883813214, now seen corresponding path program 164 times [2022-02-15 11:31:30,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:30,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986521507] [2022-02-15 11:31:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:30,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:30,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:30,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:30,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986521507] [2022-02-15 11:31:30,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986521507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:30,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:30,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:30,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687613382] [2022-02-15 11:31:30,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:30,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:30,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:30,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:30,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:30,853 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) [2022-02-15 11:31:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:31,568 INFO L93 Difference]: Finished difference Result 8922 states and 23563 transitions. [2022-02-15 11:31:31,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:31:31,568 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 [2022-02-15 11:31:31,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:31,579 INFO L225 Difference]: With dead ends: 8922 [2022-02-15 11:31:31,579 INFO L226 Difference]: Without dead ends: 8357 [2022-02-15 11:31:31,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 11:31:31,580 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 380 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:31,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2500 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:31,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2022-02-15 11:31:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 7339. [2022-02-15 11:31:31,670 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) [2022-02-15 11:31:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-02-15 11:31:31,683 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-02-15 11:31:31,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:31,683 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-02-15 11:31:31,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-02-15 11:31:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:31,691 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:31,691 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] [2022-02-15 11:31:31,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-02-15 11:31:31,691 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:31,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:31,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1019382152, now seen corresponding path program 165 times [2022-02-15 11:31:31,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:31,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928818624] [2022-02-15 11:31:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:31,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:31,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:31,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928818624] [2022-02-15 11:31:31,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928818624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:31,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:31,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:31,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411822361] [2022-02-15 11:31:31,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:31,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:31,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:31,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:31,811 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) [2022-02-15 11:31:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:32,404 INFO L93 Difference]: Finished difference Result 8805 states and 23256 transitions. [2022-02-15 11:31:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:32,415 INFO L225 Difference]: With dead ends: 8805 [2022-02-15 11:31:32,415 INFO L226 Difference]: Without dead ends: 8283 [2022-02-15 11:31:32,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:32,416 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 309 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 3050 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 [2022-02-15 11:31:32,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 3050 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:32,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-02-15 11:31:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7343. [2022-02-15 11:31:32,502 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) [2022-02-15 11:31:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-02-15 11:31:32,514 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-02-15 11:31:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:32,514 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-02-15 11:31:32,515 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) [2022-02-15 11:31:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-02-15 11:31:32,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:32,523 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:32,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:32,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-02-15 11:31:32,523 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:32,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:32,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1717669794, now seen corresponding path program 166 times [2022-02-15 11:31:32,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:32,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358578754] [2022-02-15 11:31:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:32,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:32,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:32,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358578754] [2022-02-15 11:31:32,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358578754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:32,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:32,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:32,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015511728] [2022-02-15 11:31:32,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:32,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:32,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:32,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:32,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:32,641 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) [2022-02-15 11:31:33,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:33,088 INFO L93 Difference]: Finished difference Result 8657 states and 22870 transitions. [2022-02-15 11:31:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:33,089 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 [2022-02-15 11:31:33,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:33,100 INFO L225 Difference]: With dead ends: 8657 [2022-02-15 11:31:33,100 INFO L226 Difference]: Without dead ends: 8178 [2022-02-15 11:31:33,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:33,101 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 246 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2139 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 [2022-02-15 11:31:33,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2139 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:33,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2022-02-15 11:31:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 7347. [2022-02-15 11:31:33,191 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) [2022-02-15 11:31:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-02-15 11:31:33,204 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-02-15 11:31:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:33,204 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-02-15 11:31:33,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-02-15 11:31:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:33,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:33,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:33,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-02-15 11:31:33,213 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:33,213 INFO L85 PathProgramCache]: Analyzing trace with hash -949774384, now seen corresponding path program 167 times [2022-02-15 11:31:33,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:33,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83894655] [2022-02-15 11:31:33,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:33,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:33,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:33,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83894655] [2022-02-15 11:31:33,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83894655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:33,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:33,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:33,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473916148] [2022-02-15 11:31:33,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:33,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:33,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:33,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:33,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:33,327 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) [2022-02-15 11:31:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:33,786 INFO L93 Difference]: Finished difference Result 8559 states and 22605 transitions. [2022-02-15 11:31:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:33,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:33,798 INFO L225 Difference]: With dead ends: 8559 [2022-02-15 11:31:33,798 INFO L226 Difference]: Without dead ends: 8063 [2022-02-15 11:31:33,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:33,798 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 [2022-02-15 11:31:33,798 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] [2022-02-15 11:31:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-02-15 11:31:33,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7327. [2022-02-15 11:31:33,884 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) [2022-02-15 11:31:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 19393 transitions. [2022-02-15 11:31:33,896 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 19393 transitions. Word has length 109 [2022-02-15 11:31:33,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:33,896 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 19393 transitions. [2022-02-15 11:31:33,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 19393 transitions. [2022-02-15 11:31:33,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:33,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:33,904 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:33,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-02-15 11:31:33,905 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1941281456, now seen corresponding path program 168 times [2022-02-15 11:31:33,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:33,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718967154] [2022-02-15 11:31:33,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:33,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:34,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:34,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718967154] [2022-02-15 11:31:34,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718967154] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:34,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:34,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:34,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284150821] [2022-02-15 11:31:34,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:34,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:34,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:34,026 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) [2022-02-15 11:31:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:34,477 INFO L93 Difference]: Finished difference Result 8593 states and 22706 transitions. [2022-02-15 11:31:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:34,477 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 [2022-02-15 11:31:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:34,489 INFO L225 Difference]: With dead ends: 8593 [2022-02-15 11:31:34,489 INFO L226 Difference]: Without dead ends: 8114 [2022-02-15 11:31:34,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:31:34,490 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 236 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2481 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 [2022-02-15 11:31:34,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2481 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2022-02-15 11:31:34,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 7347. [2022-02-15 11:31:34,580 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) [2022-02-15 11:31:34,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-15 11:31:34,593 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-15 11:31:34,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:34,593 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-15 11:31:34,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-15 11:31:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:34,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:34,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:34,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-02-15 11:31:34,602 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:34,602 INFO L85 PathProgramCache]: Analyzing trace with hash -726162722, now seen corresponding path program 169 times [2022-02-15 11:31:34,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:34,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701482195] [2022-02-15 11:31:34,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:34,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:34,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:34,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:34,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701482195] [2022-02-15 11:31:34,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701482195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:34,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:34,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:34,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740878256] [2022-02-15 11:31:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:34,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:34,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:34,725 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) [2022-02-15 11:31:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:35,223 INFO L93 Difference]: Finished difference Result 8551 states and 22595 transitions. [2022-02-15 11:31:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:35,223 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 [2022-02-15 11:31:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:35,234 INFO L225 Difference]: With dead ends: 8551 [2022-02-15 11:31:35,234 INFO L226 Difference]: Without dead ends: 8071 [2022-02-15 11:31:35,235 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 [2022-02-15 11:31:35,235 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 221 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2290 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 [2022-02-15 11:31:35,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2290 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2022-02-15 11:31:35,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 7343. [2022-02-15 11:31:35,320 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) [2022-02-15 11:31:35,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-15 11:31:35,333 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-15 11:31:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:35,333 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-15 11:31:35,333 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) [2022-02-15 11:31:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-15 11:31:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:35,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:35,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:35,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-02-15 11:31:35,342 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:35,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1847220062, now seen corresponding path program 170 times [2022-02-15 11:31:35,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:35,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260889460] [2022-02-15 11:31:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:35,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:35,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:35,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260889460] [2022-02-15 11:31:35,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260889460] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:35,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:35,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:35,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376893467] [2022-02-15 11:31:35,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:35,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:35,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:35,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:35,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:35,460 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) [2022-02-15 11:31:36,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:36,042 INFO L93 Difference]: Finished difference Result 8639 states and 22817 transitions. [2022-02-15 11:31:36,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:31:36,042 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 [2022-02-15 11:31:36,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:36,054 INFO L225 Difference]: With dead ends: 8639 [2022-02-15 11:31:36,054 INFO L226 Difference]: Without dead ends: 8119 [2022-02-15 11:31:36,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:31:36,054 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 284 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2936 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 [2022-02-15 11:31:36,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2936 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-02-15 11:31:36,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7339. [2022-02-15 11:31:36,197 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) [2022-02-15 11:31:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-15 11:31:36,209 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-15 11:31:36,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:36,209 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-15 11:31:36,209 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) [2022-02-15 11:31:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-15 11:31:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:36,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:36,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:36,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-02-15 11:31:36,218 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:36,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1774590338, now seen corresponding path program 171 times [2022-02-15 11:31:36,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:36,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288832365] [2022-02-15 11:31:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:36,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:36,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:36,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288832365] [2022-02-15 11:31:36,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288832365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:36,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:36,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:36,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134341452] [2022-02-15 11:31:36,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:36,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:36,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:36,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:36,339 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) [2022-02-15 11:31:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:36,874 INFO L93 Difference]: Finished difference Result 8753 states and 23117 transitions. [2022-02-15 11:31:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:31:36,874 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:36,885 INFO L225 Difference]: With dead ends: 8753 [2022-02-15 11:31:36,885 INFO L226 Difference]: Without dead ends: 8231 [2022-02-15 11:31:36,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:36,886 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 337 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2817 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 [2022-02-15 11:31:36,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 2817 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-02-15 11:31:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7343. [2022-02-15 11:31:36,973 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) [2022-02-15 11:31:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-15 11:31:36,985 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-15 11:31:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:36,985 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-15 11:31:36,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-15 11:31:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:36,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:36,994 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] [2022-02-15 11:31:36,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-02-15 11:31:36,994 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash 962461608, now seen corresponding path program 172 times [2022-02-15 11:31:36,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:36,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182035919] [2022-02-15 11:31:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:36,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:37,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:37,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182035919] [2022-02-15 11:31:37,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182035919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:37,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:37,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:37,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469091670] [2022-02-15 11:31:37,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:37,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:37,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:37,112 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) [2022-02-15 11:31:37,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:37,571 INFO L93 Difference]: Finished difference Result 8589 states and 22687 transitions. [2022-02-15 11:31:37,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:37,571 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:37,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:37,582 INFO L225 Difference]: With dead ends: 8589 [2022-02-15 11:31:37,582 INFO L226 Difference]: Without dead ends: 8110 [2022-02-15 11:31:37,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:37,582 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 261 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:37,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 2732 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2022-02-15 11:31:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7347. [2022-02-15 11:31:37,666 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) [2022-02-15 11:31:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-15 11:31:37,678 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-15 11:31:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:37,679 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-15 11:31:37,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-15 11:31:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:37,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:37,687 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] [2022-02-15 11:31:37,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-02-15 11:31:37,687 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:37,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1704982570, now seen corresponding path program 173 times [2022-02-15 11:31:37,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:37,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464518945] [2022-02-15 11:31:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:37,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:37,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:37,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464518945] [2022-02-15 11:31:37,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464518945] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:37,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:37,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:37,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226056028] [2022-02-15 11:31:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:37,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:37,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:37,801 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) [2022-02-15 11:31:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:38,284 INFO L93 Difference]: Finished difference Result 8523 states and 22510 transitions. [2022-02-15 11:31:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:38,284 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:38,299 INFO L225 Difference]: With dead ends: 8523 [2022-02-15 11:31:38,299 INFO L226 Difference]: Without dead ends: 8035 [2022-02-15 11:31:38,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:38,300 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 239 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:38,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2674 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2022-02-15 11:31:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7335. [2022-02-15 11:31:38,416 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) [2022-02-15 11:31:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-02-15 11:31:38,432 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-02-15 11:31:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:38,432 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-02-15 11:31:38,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-02-15 11:31:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:38,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:38,443 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] [2022-02-15 11:31:38,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-02-15 11:31:38,444 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1307640626, now seen corresponding path program 174 times [2022-02-15 11:31:38,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:38,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260548233] [2022-02-15 11:31:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:38,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:38,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:38,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260548233] [2022-02-15 11:31:38,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260548233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:38,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:38,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:38,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408154627] [2022-02-15 11:31:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:38,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:38,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:38,568 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) [2022-02-15 11:31:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:39,289 INFO L93 Difference]: Finished difference Result 8886 states and 23464 transitions. [2022-02-15 11:31:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:31:39,290 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 [2022-02-15 11:31:39,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:39,301 INFO L225 Difference]: With dead ends: 8886 [2022-02-15 11:31:39,301 INFO L226 Difference]: Without dead ends: 8321 [2022-02-15 11:31:39,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 11:31:39,302 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 408 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2654 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 [2022-02-15 11:31:39,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 2654 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-02-15 11:31:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 7339. [2022-02-15 11:31:39,389 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) [2022-02-15 11:31:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-02-15 11:31:39,401 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-02-15 11:31:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:39,402 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-02-15 11:31:39,402 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) [2022-02-15 11:31:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-02-15 11:31:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:39,410 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:39,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:39,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-02-15 11:31:39,410 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2122895608, now seen corresponding path program 175 times [2022-02-15 11:31:39,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:39,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889622149] [2022-02-15 11:31:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:39,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:39,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:39,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889622149] [2022-02-15 11:31:39,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889622149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:39,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:39,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:39,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787726276] [2022-02-15 11:31:39,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:39,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:39,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:39,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:39,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:39,549 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) [2022-02-15 11:31:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:40,112 INFO L93 Difference]: Finished difference Result 8761 states and 23135 transitions. [2022-02-15 11:31:40,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:40,112 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 [2022-02-15 11:31:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:40,124 INFO L225 Difference]: With dead ends: 8761 [2022-02-15 11:31:40,124 INFO L226 Difference]: Without dead ends: 8239 [2022-02-15 11:31:40,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:40,125 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 338 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2819 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 [2022-02-15 11:31:40,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2819 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-02-15 11:31:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 7343. [2022-02-15 11:31:40,212 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) [2022-02-15 11:31:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-02-15 11:31:40,224 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-02-15 11:31:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:40,225 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-02-15 11:31:40,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-02-15 11:31:40,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:40,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:40,233 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] [2022-02-15 11:31:40,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-02-15 11:31:40,233 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash 614156338, now seen corresponding path program 176 times [2022-02-15 11:31:40,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:40,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000190003] [2022-02-15 11:31:40,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:40,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:40,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:40,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000190003] [2022-02-15 11:31:40,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000190003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:40,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:40,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:40,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166920584] [2022-02-15 11:31:40,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:40,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:40,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:40,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:40,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:40,363 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) [2022-02-15 11:31:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:40,801 INFO L93 Difference]: Finished difference Result 8597 states and 22705 transitions. [2022-02-15 11:31:40,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:40,801 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:40,811 INFO L225 Difference]: With dead ends: 8597 [2022-02-15 11:31:40,811 INFO L226 Difference]: Without dead ends: 8118 [2022-02-15 11:31:40,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:40,812 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 254 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2465 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 [2022-02-15 11:31:40,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 2465 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:40,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-02-15 11:31:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7347. [2022-02-15 11:31:40,897 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) [2022-02-15 11:31:40,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-02-15 11:31:40,911 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-02-15 11:31:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:40,911 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-02-15 11:31:40,911 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) [2022-02-15 11:31:40,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-02-15 11:31:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:40,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:40,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:40,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-02-15 11:31:40,920 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2053287840, now seen corresponding path program 177 times [2022-02-15 11:31:40,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:40,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301947328] [2022-02-15 11:31:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:40,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:41,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:41,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:41,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301947328] [2022-02-15 11:31:41,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301947328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:41,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:41,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:41,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755104585] [2022-02-15 11:31:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:41,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:41,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:41,036 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) [2022-02-15 11:31:41,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:41,494 INFO L93 Difference]: Finished difference Result 8523 states and 22506 transitions. [2022-02-15 11:31:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:41,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:41,505 INFO L225 Difference]: With dead ends: 8523 [2022-02-15 11:31:41,505 INFO L226 Difference]: Without dead ends: 8031 [2022-02-15 11:31:41,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:41,506 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 [2022-02-15 11:31:41,506 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] [2022-02-15 11:31:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-02-15 11:31:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 7331. [2022-02-15 11:31:41,592 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) [2022-02-15 11:31:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19400 transitions. [2022-02-15 11:31:41,605 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19400 transitions. Word has length 109 [2022-02-15 11:31:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:41,605 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19400 transitions. [2022-02-15 11:31:41,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19400 transitions. [2022-02-15 11:31:41,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:41,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:41,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:41,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-02-15 11:31:41,614 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:41,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1660117148, now seen corresponding path program 178 times [2022-02-15 11:31:41,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:41,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406647760] [2022-02-15 11:31:41,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:41,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:41,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:41,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406647760] [2022-02-15 11:31:41,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406647760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:41,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:41,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:41,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644667153] [2022-02-15 11:31:41,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:41,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:41,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:41,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:41,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:41,734 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) [2022-02-15 11:31:42,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:42,500 INFO L93 Difference]: Finished difference Result 8839 states and 23316 transitions. [2022-02-15 11:31:42,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 11:31:42,501 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 [2022-02-15 11:31:42,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:42,512 INFO L225 Difference]: With dead ends: 8839 [2022-02-15 11:31:42,512 INFO L226 Difference]: Without dead ends: 8231 [2022-02-15 11:31:42,512 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 [2022-02-15 11:31:42,512 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 [2022-02-15 11:31:42,513 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] [2022-02-15 11:31:42,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-02-15 11:31:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7335. [2022-02-15 11:31:42,599 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) [2022-02-15 11:31:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19407 transitions. [2022-02-15 11:31:42,611 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19407 transitions. Word has length 109 [2022-02-15 11:31:42,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:42,611 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19407 transitions. [2022-02-15 11:31:42,611 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) [2022-02-15 11:31:42,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19407 transitions. [2022-02-15 11:31:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:42,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:42,619 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] [2022-02-15 11:31:42,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-02-15 11:31:42,619 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:42,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:42,620 INFO L85 PathProgramCache]: Analyzing trace with hash -610354592, now seen corresponding path program 179 times [2022-02-15 11:31:42,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:42,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809536175] [2022-02-15 11:31:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:42,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:42,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:42,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809536175] [2022-02-15 11:31:42,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809536175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:42,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:42,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:42,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662935486] [2022-02-15 11:31:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:42,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:42,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:42,758 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) [2022-02-15 11:31:43,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:43,507 INFO L93 Difference]: Finished difference Result 8726 states and 23020 transitions. [2022-02-15 11:31:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:31:43,507 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:43,518 INFO L225 Difference]: With dead ends: 8726 [2022-02-15 11:31:43,518 INFO L226 Difference]: Without dead ends: 8161 [2022-02-15 11:31:43,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:31:43,519 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 [2022-02-15 11:31:43,519 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] [2022-02-15 11:31:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-02-15 11:31:43,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 7339. [2022-02-15 11:31:43,608 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) [2022-02-15 11:31:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19414 transitions. [2022-02-15 11:31:43,620 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19414 transitions. Word has length 109 [2022-02-15 11:31:43,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:43,620 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19414 transitions. [2022-02-15 11:31:43,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19414 transitions. [2022-02-15 11:31:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:43,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:43,628 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] [2022-02-15 11:31:43,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-02-15 11:31:43,628 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash 254076470, now seen corresponding path program 180 times [2022-02-15 11:31:43,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:43,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971653777] [2022-02-15 11:31:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:43,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:43,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:43,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971653777] [2022-02-15 11:31:43,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971653777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:43,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:43,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:43,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420324354] [2022-02-15 11:31:43,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:43,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:43,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:43,750 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) [2022-02-15 11:31:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:44,355 INFO L93 Difference]: Finished difference Result 8613 states and 22724 transitions. [2022-02-15 11:31:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:44,356 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 [2022-02-15 11:31:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:44,367 INFO L225 Difference]: With dead ends: 8613 [2022-02-15 11:31:44,367 INFO L226 Difference]: Without dead ends: 8091 [2022-02-15 11:31:44,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:31:44,367 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 336 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2978 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 [2022-02-15 11:31:44,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2978 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:44,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-02-15 11:31:44,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7343. [2022-02-15 11:31:44,457 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) [2022-02-15 11:31:44,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19421 transitions. [2022-02-15 11:31:44,469 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19421 transitions. Word has length 109 [2022-02-15 11:31:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:44,469 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19421 transitions. [2022-02-15 11:31:44,469 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) [2022-02-15 11:31:44,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19421 transitions. [2022-02-15 11:31:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:44,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:44,477 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] [2022-02-15 11:31:44,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-02-15 11:31:44,477 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:44,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1303838880, now seen corresponding path program 181 times [2022-02-15 11:31:44,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:44,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525983099] [2022-02-15 11:31:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:44,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:44,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:44,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525983099] [2022-02-15 11:31:44,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525983099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:44,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:44,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:44,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462489581] [2022-02-15 11:31:44,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:44,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:44,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:44,620 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) [2022-02-15 11:31:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:45,083 INFO L93 Difference]: Finished difference Result 8473 states and 22360 transitions. [2022-02-15 11:31:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:45,094 INFO L225 Difference]: With dead ends: 8473 [2022-02-15 11:31:45,094 INFO L226 Difference]: Without dead ends: 7994 [2022-02-15 11:31:45,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:31:45,094 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 [2022-02-15 11:31:45,095 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] [2022-02-15 11:31:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2022-02-15 11:31:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 7347. [2022-02-15 11:31:45,186 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) [2022-02-15 11:31:45,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19428 transitions. [2022-02-15 11:31:45,198 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19428 transitions. Word has length 109 [2022-02-15 11:31:45,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:45,198 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19428 transitions. [2022-02-15 11:31:45,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:45,198 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19428 transitions. [2022-02-15 11:31:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:45,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:45,206 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] [2022-02-15 11:31:45,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-02-15 11:31:45,206 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:45,207 INFO L85 PathProgramCache]: Analyzing trace with hash 323684238, now seen corresponding path program 182 times [2022-02-15 11:31:45,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:45,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410054587] [2022-02-15 11:31:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:45,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:45,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:45,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:45,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410054587] [2022-02-15 11:31:45,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410054587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:45,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:45,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:45,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571212897] [2022-02-15 11:31:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:45,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:45,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:45,323 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) [2022-02-15 11:31:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:45,754 INFO L93 Difference]: Finished difference Result 8343 states and 22007 transitions. [2022-02-15 11:31:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:31:45,755 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 [2022-02-15 11:31:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:45,766 INFO L225 Difference]: With dead ends: 8343 [2022-02-15 11:31:45,766 INFO L226 Difference]: Without dead ends: 7817 [2022-02-15 11:31:45,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:31:45,766 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2786 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 [2022-02-15 11:31:45,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2786 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:45,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-02-15 11:31:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7297. [2022-02-15 11:31:45,857 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) [2022-02-15 11:31:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19319 transitions. [2022-02-15 11:31:45,869 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19319 transitions. Word has length 109 [2022-02-15 11:31:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:45,870 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19319 transitions. [2022-02-15 11:31:45,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19319 transitions. [2022-02-15 11:31:45,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:45,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:45,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:45,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-02-15 11:31:45,878 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash -744472904, now seen corresponding path program 183 times [2022-02-15 11:31:45,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:45,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758409246] [2022-02-15 11:31:45,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:45,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:45,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:45,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758409246] [2022-02-15 11:31:45,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758409246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:45,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:45,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:45,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561419198] [2022-02-15 11:31:45,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:45,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:45,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:45,999 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) [2022-02-15 11:31:46,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:46,422 INFO L93 Difference]: Finished difference Result 8551 states and 22599 transitions. [2022-02-15 11:31:46,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:46,422 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 [2022-02-15 11:31:46,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:46,432 INFO L225 Difference]: With dead ends: 8551 [2022-02-15 11:31:46,432 INFO L226 Difference]: Without dead ends: 8072 [2022-02-15 11:31:46,433 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 [2022-02-15 11:31:46,433 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 205 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:46,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2040 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2022-02-15 11:31:46,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7321. [2022-02-15 11:31:46,561 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) [2022-02-15 11:31:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19381 transitions. [2022-02-15 11:31:46,572 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19381 transitions. Word has length 109 [2022-02-15 11:31:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:46,572 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19381 transitions. [2022-02-15 11:31:46,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19381 transitions. [2022-02-15 11:31:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:46,579 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:46,579 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] [2022-02-15 11:31:46,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-02-15 11:31:46,579 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash 883050214, now seen corresponding path program 184 times [2022-02-15 11:31:46,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:46,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588599252] [2022-02-15 11:31:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:46,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:46,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:46,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588599252] [2022-02-15 11:31:46,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588599252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:46,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:46,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:46,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116735384] [2022-02-15 11:31:46,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:46,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:46,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:46,691 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) [2022-02-15 11:31:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:47,128 INFO L93 Difference]: Finished difference Result 8517 states and 22510 transitions. [2022-02-15 11:31:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:47,128 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:47,137 INFO L225 Difference]: With dead ends: 8517 [2022-02-15 11:31:47,137 INFO L226 Difference]: Without dead ends: 8037 [2022-02-15 11:31:47,138 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 [2022-02-15 11:31:47,138 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 221 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2319 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 [2022-02-15 11:31:47,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2319 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-02-15 11:31:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7317. [2022-02-15 11:31:47,210 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) [2022-02-15 11:31:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19370 transitions. [2022-02-15 11:31:47,220 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19370 transitions. Word has length 109 [2022-02-15 11:31:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:47,220 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19370 transitions. [2022-02-15 11:31:47,221 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) [2022-02-15 11:31:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19370 transitions. [2022-02-15 11:31:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:47,228 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:47,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:47,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-02-15 11:31:47,228 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash -238007126, now seen corresponding path program 185 times [2022-02-15 11:31:47,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:47,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178458003] [2022-02-15 11:31:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:47,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:47,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:47,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178458003] [2022-02-15 11:31:47,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178458003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:47,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:47,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:47,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088558978] [2022-02-15 11:31:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:47,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:47,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:47,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:47,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:47,339 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) [2022-02-15 11:31:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:47,898 INFO L93 Difference]: Finished difference Result 8553 states and 22605 transitions. [2022-02-15 11:31:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:47,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:47,908 INFO L225 Difference]: With dead ends: 8553 [2022-02-15 11:31:47,908 INFO L226 Difference]: Without dead ends: 8033 [2022-02-15 11:31:47,909 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 [2022-02-15 11:31:47,909 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 270 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2816 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 [2022-02-15 11:31:47,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2816 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-02-15 11:31:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 7313. [2022-02-15 11:31:47,991 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) [2022-02-15 11:31:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19359 transitions. [2022-02-15 11:31:48,002 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19359 transitions. Word has length 109 [2022-02-15 11:31:48,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:48,002 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19359 transitions. [2022-02-15 11:31:48,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19359 transitions. [2022-02-15 11:31:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:48,010 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:48,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:48,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-02-15 11:31:48,010 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash -763142662, now seen corresponding path program 186 times [2022-02-15 11:31:48,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:48,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404868932] [2022-02-15 11:31:48,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:48,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:48,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:48,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404868932] [2022-02-15 11:31:48,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404868932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:48,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:48,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:48,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749419295] [2022-02-15 11:31:48,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:48,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:48,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:48,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:48,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:48,134 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) [2022-02-15 11:31:48,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:48,818 INFO L93 Difference]: Finished difference Result 8781 states and 23204 transitions. [2022-02-15 11:31:48,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:31:48,818 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 [2022-02-15 11:31:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:48,829 INFO L225 Difference]: With dead ends: 8781 [2022-02-15 11:31:48,829 INFO L226 Difference]: Without dead ends: 8221 [2022-02-15 11:31:48,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 11:31:48,830 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 346 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 11:31:48,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 2869 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 11:31:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2022-02-15 11:31:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7309. [2022-02-15 11:31:48,915 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) [2022-02-15 11:31:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19348 transitions. [2022-02-15 11:31:48,927 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19348 transitions. Word has length 109 [2022-02-15 11:31:48,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:48,927 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19348 transitions. [2022-02-15 11:31:48,927 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) [2022-02-15 11:31:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19348 transitions. [2022-02-15 11:31:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:48,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:48,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:48,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-02-15 11:31:48,935 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:48,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:48,936 INFO L85 PathProgramCache]: Analyzing trace with hash -953456066, now seen corresponding path program 187 times [2022-02-15 11:31:48,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:48,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398844307] [2022-02-15 11:31:48,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:48,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:49,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:49,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398844307] [2022-02-15 11:31:49,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398844307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:49,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:49,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:49,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179193282] [2022-02-15 11:31:49,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:49,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:49,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:49,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:49,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:49,053 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) [2022-02-15 11:31:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:49,490 INFO L93 Difference]: Finished difference Result 8527 states and 22529 transitions. [2022-02-15 11:31:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:49,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:49,501 INFO L225 Difference]: With dead ends: 8527 [2022-02-15 11:31:49,501 INFO L226 Difference]: Without dead ends: 8048 [2022-02-15 11:31:49,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:31:49,501 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 225 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2093 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 [2022-02-15 11:31:49,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2093 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:49,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-02-15 11:31:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7321. [2022-02-15 11:31:49,586 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) [2022-02-15 11:31:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-15 11:31:49,598 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-15 11:31:49,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:49,598 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-15 11:31:49,599 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) [2022-02-15 11:31:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-15 11:31:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:49,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:49,607 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] [2022-02-15 11:31:49,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-02-15 11:31:49,607 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash 674067052, now seen corresponding path program 188 times [2022-02-15 11:31:49,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:49,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973132672] [2022-02-15 11:31:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:49,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:49,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:49,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973132672] [2022-02-15 11:31:49,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973132672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:49,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:49,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:49,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557550880] [2022-02-15 11:31:49,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:49,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:49,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:49,722 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) [2022-02-15 11:31:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:50,187 INFO L93 Difference]: Finished difference Result 8485 states and 22418 transitions. [2022-02-15 11:31:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:50,198 INFO L225 Difference]: With dead ends: 8485 [2022-02-15 11:31:50,198 INFO L226 Difference]: Without dead ends: 8005 [2022-02-15 11:31:50,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:50,198 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 205 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2589 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 [2022-02-15 11:31:50,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2589 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:50,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-02-15 11:31:50,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7317. [2022-02-15 11:31:50,285 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) [2022-02-15 11:31:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-15 11:31:50,297 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-15 11:31:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:50,297 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-15 11:31:50,297 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) [2022-02-15 11:31:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-15 11:31:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:50,306 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:50,306 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] [2022-02-15 11:31:50,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-02-15 11:31:50,306 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash -446990288, now seen corresponding path program 189 times [2022-02-15 11:31:50,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:50,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604366051] [2022-02-15 11:31:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:50,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:50,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:50,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604366051] [2022-02-15 11:31:50,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604366051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:50,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:50,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:50,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460203900] [2022-02-15 11:31:50,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:50,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:50,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:50,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:50,421 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) [2022-02-15 11:31:50,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:50,978 INFO L93 Difference]: Finished difference Result 8653 states and 22860 transitions. [2022-02-15 11:31:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:31:50,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:50,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:50,990 INFO L225 Difference]: With dead ends: 8653 [2022-02-15 11:31:50,990 INFO L226 Difference]: Without dead ends: 8133 [2022-02-15 11:31:50,990 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 [2022-02-15 11:31:50,990 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 285 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2658 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 [2022-02-15 11:31:50,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2658 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2022-02-15 11:31:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7313. [2022-02-15 11:31:51,075 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) [2022-02-15 11:31:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-15 11:31:51,088 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-15 11:31:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:51,089 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-15 11:31:51,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-15 11:31:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:51,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:51,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:51,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-02-15 11:31:51,097 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash -374360564, now seen corresponding path program 190 times [2022-02-15 11:31:51,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:51,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915615606] [2022-02-15 11:31:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:51,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:51,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:51,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915615606] [2022-02-15 11:31:51,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915615606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:51,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:51,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:51,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566412064] [2022-02-15 11:31:51,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:51,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:51,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:51,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:51,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:51,215 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) [2022-02-15 11:31:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:51,758 INFO L93 Difference]: Finished difference Result 8571 states and 22621 transitions. [2022-02-15 11:31:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:31:51,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:51,769 INFO L225 Difference]: With dead ends: 8571 [2022-02-15 11:31:51,769 INFO L226 Difference]: Without dead ends: 8049 [2022-02-15 11:31:51,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 11:31:51,770 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 285 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2153 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 [2022-02-15 11:31:51,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2153 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:51,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2022-02-15 11:31:51,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 7317. [2022-02-15 11:31:51,855 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) [2022-02-15 11:31:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-15 11:31:51,867 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-15 11:31:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:51,867 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-15 11:31:51,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-15 11:31:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:51,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:51,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:51,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-02-15 11:31:51,876 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:51,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1932275914, now seen corresponding path program 191 times [2022-02-15 11:31:51,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:51,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888209705] [2022-02-15 11:31:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:51,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:52,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:52,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888209705] [2022-02-15 11:31:52,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888209705] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:52,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:52,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:52,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799327314] [2022-02-15 11:31:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:52,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:52,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:52,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:52,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:52,016 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) [2022-02-15 11:31:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:52,469 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-02-15 11:31:52,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:52,470 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 [2022-02-15 11:31:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:52,480 INFO L225 Difference]: With dead ends: 8471 [2022-02-15 11:31:52,480 INFO L226 Difference]: Without dead ends: 7992 [2022-02-15 11:31:52,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:31:52,481 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 223 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2051 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 [2022-02-15 11:31:52,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2051 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-15 11:31:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-15 11:31:52,561 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) [2022-02-15 11:31:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19369 transitions. [2022-02-15 11:31:52,573 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19369 transitions. Word has length 109 [2022-02-15 11:31:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:52,574 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19369 transitions. [2022-02-15 11:31:52,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:52,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19369 transitions. [2022-02-15 11:31:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:52,581 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:52,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:52,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-02-15 11:31:52,582 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:52,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash -304752796, now seen corresponding path program 192 times [2022-02-15 11:31:52,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:52,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725869290] [2022-02-15 11:31:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:52,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:52,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:52,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:52,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725869290] [2022-02-15 11:31:52,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725869290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:52,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:52,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:52,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901910141] [2022-02-15 11:31:52,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:52,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:52,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:52,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:52,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:52,696 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) [2022-02-15 11:31:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:53,132 INFO L93 Difference]: Finished difference Result 8421 states and 22234 transitions. [2022-02-15 11:31:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:31:53,133 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 [2022-02-15 11:31:53,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:53,143 INFO L225 Difference]: With dead ends: 8421 [2022-02-15 11:31:53,143 INFO L226 Difference]: Without dead ends: 7929 [2022-02-15 11:31:53,143 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 [2022-02-15 11:31:53,143 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 213 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2326 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 [2022-02-15 11:31:53,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2326 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-02-15 11:31:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7305. [2022-02-15 11:31:53,224 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) [2022-02-15 11:31:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19337 transitions. [2022-02-15 11:31:53,236 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19337 transitions. Word has length 109 [2022-02-15 11:31:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:53,236 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19337 transitions. [2022-02-15 11:31:53,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:53,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19337 transitions. [2022-02-15 11:31:53,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:53,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:53,244 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:53,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-02-15 11:31:53,244 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:53,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:53,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1565037480, now seen corresponding path program 193 times [2022-02-15 11:31:53,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:53,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132750232] [2022-02-15 11:31:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:53,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:53,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:53,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132750232] [2022-02-15 11:31:53,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132750232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:53,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:53,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:53,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202629200] [2022-02-15 11:31:53,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:53,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:53,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:53,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:53,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:53,364 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) [2022-02-15 11:31:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:53,769 INFO L93 Difference]: Finished difference Result 8363 states and 22078 transitions. [2022-02-15 11:31:53,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:31:53,769 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:53,779 INFO L225 Difference]: With dead ends: 8363 [2022-02-15 11:31:53,779 INFO L226 Difference]: Without dead ends: 7884 [2022-02-15 11:31:53,780 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 [2022-02-15 11:31:53,780 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 200 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2181 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 [2022-02-15 11:31:53,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2181 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-02-15 11:31:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7321. [2022-02-15 11:31:53,869 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) [2022-02-15 11:31:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-15 11:31:53,882 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-15 11:31:53,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:53,882 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-15 11:31:53,882 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) [2022-02-15 11:31:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-15 11:31:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:53,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:53,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:53,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-02-15 11:31:53,891 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:53,891 INFO L85 PathProgramCache]: Analyzing trace with hash 62485638, now seen corresponding path program 194 times [2022-02-15 11:31:53,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:53,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442867782] [2022-02-15 11:31:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:53,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:54,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:54,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442867782] [2022-02-15 11:31:54,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442867782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:54,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:54,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:54,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539908338] [2022-02-15 11:31:54,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:54,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:54,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:54,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:54,004 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) [2022-02-15 11:31:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:54,450 INFO L93 Difference]: Finished difference Result 8333 states and 22000 transitions. [2022-02-15 11:31:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:54,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:54,460 INFO L225 Difference]: With dead ends: 8333 [2022-02-15 11:31:54,460 INFO L226 Difference]: Without dead ends: 7853 [2022-02-15 11:31:54,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:31:54,461 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 218 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2200 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 [2022-02-15 11:31:54,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2200 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-02-15 11:31:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7317. [2022-02-15 11:31:54,544 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) [2022-02-15 11:31:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-15 11:31:54,556 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-15 11:31:54,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:54,556 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-15 11:31:54,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-15 11:31:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:54,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:54,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:54,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-02-15 11:31:54,564 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:54,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1058571702, now seen corresponding path program 195 times [2022-02-15 11:31:54,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:54,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845440296] [2022-02-15 11:31:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:54,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:54,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:54,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845440296] [2022-02-15 11:31:54,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845440296] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:54,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:54,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:54,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807791370] [2022-02-15 11:31:54,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:54,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:54,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:54,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:54,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:54,678 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) [2022-02-15 11:31:55,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:55,238 INFO L93 Difference]: Finished difference Result 8369 states and 22095 transitions. [2022-02-15 11:31:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:55,238 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 [2022-02-15 11:31:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:55,248 INFO L225 Difference]: With dead ends: 8369 [2022-02-15 11:31:55,249 INFO L226 Difference]: Without dead ends: 7849 [2022-02-15 11:31:55,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=475, Invalid=1687, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:55,249 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 280 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2288 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 [2022-02-15 11:31:55,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2288 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:55,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2022-02-15 11:31:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 7313. [2022-02-15 11:31:55,337 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) [2022-02-15 11:31:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-15 11:31:55,351 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-15 11:31:55,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:55,351 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-15 11:31:55,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:55,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-15 11:31:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:55,359 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:55,359 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] [2022-02-15 11:31:55,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-02-15 11:31:55,359 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:55,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1583707238, now seen corresponding path program 196 times [2022-02-15 11:31:55,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:55,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062701259] [2022-02-15 11:31:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:55,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:55,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:55,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062701259] [2022-02-15 11:31:55,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062701259] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:55,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:55,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:55,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467609649] [2022-02-15 11:31:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:55,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:55,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:55,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:55,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:55,474 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) [2022-02-15 11:31:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:56,189 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-02-15 11:31:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:31:56,189 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:56,199 INFO L225 Difference]: With dead ends: 8405 [2022-02-15 11:31:56,200 INFO L226 Difference]: Without dead ends: 7845 [2022-02-15 11:31:56,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 11:31:56,200 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 315 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 2908 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 [2022-02-15 11:31:56,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 2908 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-02-15 11:31:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7309. [2022-02-15 11:31:56,279 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) [2022-02-15 11:31:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-15 11:31:56,291 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-15 11:31:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:56,291 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-15 11:31:56,291 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) [2022-02-15 11:31:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-15 11:31:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:56,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:56,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:56,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-02-15 11:31:56,299 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:56,299 INFO L85 PathProgramCache]: Analyzing trace with hash -931413972, now seen corresponding path program 197 times [2022-02-15 11:31:56,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:56,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852356070] [2022-02-15 11:31:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:56,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:56,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:56,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852356070] [2022-02-15 11:31:56,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852356070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:56,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:56,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:56,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625385311] [2022-02-15 11:31:56,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:56,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:56,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:56,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:56,413 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) [2022-02-15 11:31:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:57,135 INFO L93 Difference]: Finished difference Result 8373 states and 22102 transitions. [2022-02-15 11:31:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:31:57,135 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:57,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:57,145 INFO L225 Difference]: With dead ends: 8373 [2022-02-15 11:31:57,145 INFO L226 Difference]: Without dead ends: 7769 [2022-02-15 11:31:57,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 11:31:57,146 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2872 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 [2022-02-15 11:31:57,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2872 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2022-02-15 11:31:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 7301. [2022-02-15 11:31:57,232 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) [2022-02-15 11:31:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19326 transitions. [2022-02-15 11:31:57,244 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19326 transitions. Word has length 109 [2022-02-15 11:31:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:57,244 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19326 transitions. [2022-02-15 11:31:57,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19326 transitions. [2022-02-15 11:31:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:57,252 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:57,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:57,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-02-15 11:31:57,252 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:57,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash 698429018, now seen corresponding path program 198 times [2022-02-15 11:31:57,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:57,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435869219] [2022-02-15 11:31:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:57,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:57,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:57,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435869219] [2022-02-15 11:31:57,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435869219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:57,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:57,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:57,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055346616] [2022-02-15 11:31:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:57,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:57,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:57,372 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) [2022-02-15 11:31:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:57,776 INFO L93 Difference]: Finished difference Result 8503 states and 22467 transitions. [2022-02-15 11:31:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:31:57,776 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:57,786 INFO L225 Difference]: With dead ends: 8503 [2022-02-15 11:31:57,786 INFO L226 Difference]: Without dead ends: 8024 [2022-02-15 11:31:57,786 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 [2022-02-15 11:31:57,786 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 216 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2349 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 [2022-02-15 11:31:57,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2349 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:57,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-02-15 11:31:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7321. [2022-02-15 11:31:57,860 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) [2022-02-15 11:31:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-15 11:31:57,871 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-15 11:31:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:57,871 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-15 11:31:57,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:31:57,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-15 11:31:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:57,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:57,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:57,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-02-15 11:31:57,878 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1969015160, now seen corresponding path program 199 times [2022-02-15 11:31:57,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:57,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054213814] [2022-02-15 11:31:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:57,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:57,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:57,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:57,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054213814] [2022-02-15 11:31:57,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054213814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:57,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:57,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:57,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961074699] [2022-02-15 11:31:57,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:57,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:57,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:57,990 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) [2022-02-15 11:31:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:58,425 INFO L93 Difference]: Finished difference Result 8469 states and 22378 transitions. [2022-02-15 11:31:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:31:58,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:31:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:58,436 INFO L225 Difference]: With dead ends: 8469 [2022-02-15 11:31:58,436 INFO L226 Difference]: Without dead ends: 7989 [2022-02-15 11:31:58,436 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 [2022-02-15 11:31:58,437 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 240 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2404 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 [2022-02-15 11:31:58,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2404 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-02-15 11:31:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7317. [2022-02-15 11:31:58,525 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) [2022-02-15 11:31:58,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-15 11:31:58,538 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-15 11:31:58,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:58,538 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-15 11:31:58,538 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) [2022-02-15 11:31:58,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-15 11:31:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:58,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:58,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:58,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-02-15 11:31:58,547 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:58,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1204894796, now seen corresponding path program 200 times [2022-02-15 11:31:58,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:58,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416046202] [2022-02-15 11:31:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:58,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:58,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:58,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416046202] [2022-02-15 11:31:58,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416046202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:58,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:58,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:58,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33879043] [2022-02-15 11:31:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:58,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:58,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:58,661 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) [2022-02-15 11:31:59,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:31:59,213 INFO L93 Difference]: Finished difference Result 8505 states and 22473 transitions. [2022-02-15 11:31:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:31:59,213 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 [2022-02-15 11:31:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:31:59,223 INFO L225 Difference]: With dead ends: 8505 [2022-02-15 11:31:59,224 INFO L226 Difference]: Without dead ends: 7985 [2022-02-15 11:31:59,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:31:59,224 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 277 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2629 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 [2022-02-15 11:31:59,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2629 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:31:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-02-15 11:31:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7313. [2022-02-15 11:31:59,312 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) [2022-02-15 11:31:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-15 11:31:59,324 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-15 11:31:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:31:59,325 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-15 11:31:59,325 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) [2022-02-15 11:31:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-15 11:31:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:31:59,333 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:31:59,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:31:59,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-02-15 11:31:59,334 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:31:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:31:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash 679759260, now seen corresponding path program 201 times [2022-02-15 11:31:59,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:31:59,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211395869] [2022-02-15 11:31:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:31:59,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:31:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:31:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:31:59,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:31:59,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211395869] [2022-02-15 11:31:59,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211395869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:31:59,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:31:59,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:31:59,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071975243] [2022-02-15 11:31:59,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:31:59,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:31:59,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:31:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:31:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:31:59,449 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) [2022-02-15 11:32:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:00,077 INFO L93 Difference]: Finished difference Result 8649 states and 22841 transitions. [2022-02-15 11:32:00,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:32:00,077 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 [2022-02-15 11:32:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:00,088 INFO L225 Difference]: With dead ends: 8649 [2022-02-15 11:32:00,088 INFO L226 Difference]: Without dead ends: 8089 [2022-02-15 11:32:00,089 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 [2022-02-15 11:32:00,089 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 [2022-02-15 11:32:00,089 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] [2022-02-15 11:32:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-02-15 11:32:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7309. [2022-02-15 11:32:00,170 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) [2022-02-15 11:32:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-15 11:32:00,182 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-15 11:32:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:00,182 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-15 11:32:00,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-15 11:32:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:00,189 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:00,189 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] [2022-02-15 11:32:00,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-02-15 11:32:00,190 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:00,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:00,190 INFO L85 PathProgramCache]: Analyzing trace with hash 489445856, now seen corresponding path program 202 times [2022-02-15 11:32:00,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:00,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505930649] [2022-02-15 11:32:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:00,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:00,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:00,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505930649] [2022-02-15 11:32:00,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505930649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:00,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:00,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:00,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332239834] [2022-02-15 11:32:00,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:00,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:00,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:00,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:00,308 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) [2022-02-15 11:32:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:00,724 INFO L93 Difference]: Finished difference Result 8575 states and 22661 transitions. [2022-02-15 11:32:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:00,735 INFO L225 Difference]: With dead ends: 8575 [2022-02-15 11:32:00,735 INFO L226 Difference]: Without dead ends: 8096 [2022-02-15 11:32:00,735 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 [2022-02-15 11:32:00,735 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 222 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:00,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2161 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:00,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-02-15 11:32:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7321. [2022-02-15 11:32:00,824 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) [2022-02-15 11:32:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-02-15 11:32:00,837 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-02-15 11:32:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:00,838 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-02-15 11:32:00,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-02-15 11:32:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:00,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:00,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:00,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-02-15 11:32:00,846 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:00,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968974, now seen corresponding path program 203 times [2022-02-15 11:32:00,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:00,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628879271] [2022-02-15 11:32:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:00,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:00,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:00,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628879271] [2022-02-15 11:32:00,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628879271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:00,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:00,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:00,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972793973] [2022-02-15 11:32:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:00,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:00,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:00,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:00,964 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) [2022-02-15 11:32:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:01,434 INFO L93 Difference]: Finished difference Result 8533 states and 22550 transitions. [2022-02-15 11:32:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:01,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:01,446 INFO L225 Difference]: With dead ends: 8533 [2022-02-15 11:32:01,446 INFO L226 Difference]: Without dead ends: 8053 [2022-02-15 11:32:01,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:32:01,446 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 219 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2691 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 [2022-02-15 11:32:01,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2691 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:01,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-02-15 11:32:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7317. [2022-02-15 11:32:01,538 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) [2022-02-15 11:32:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-15 11:32:01,550 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-15 11:32:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:01,551 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-15 11:32:01,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-15 11:32:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:01,559 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:01,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:01,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-02-15 11:32:01,559 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:01,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 995911634, now seen corresponding path program 204 times [2022-02-15 11:32:01,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:01,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900302759] [2022-02-15 11:32:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:01,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:01,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:01,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900302759] [2022-02-15 11:32:01,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900302759] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:01,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:01,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:01,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008084205] [2022-02-15 11:32:01,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:01,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:01,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:01,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:01,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:01,677 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) [2022-02-15 11:32:02,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:02,236 INFO L93 Difference]: Finished difference Result 8661 states and 22882 transitions. [2022-02-15 11:32:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:32:02,236 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 [2022-02-15 11:32:02,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:02,247 INFO L225 Difference]: With dead ends: 8661 [2022-02-15 11:32:02,247 INFO L226 Difference]: Without dead ends: 8141 [2022-02-15 11:32:02,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:32:02,248 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 [2022-02-15 11:32:02,248 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] [2022-02-15 11:32:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-02-15 11:32:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7313. [2022-02-15 11:32:02,336 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) [2022-02-15 11:32:02,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-15 11:32:02,348 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-15 11:32:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:02,348 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-15 11:32:02,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-15 11:32:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:02,357 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:02,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:02,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-02-15 11:32:02,357 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541358, now seen corresponding path program 205 times [2022-02-15 11:32:02,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:02,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391459477] [2022-02-15 11:32:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:02,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:02,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:02,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391459477] [2022-02-15 11:32:02,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391459477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:02,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:02,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:02,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220360501] [2022-02-15 11:32:02,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:02,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:02,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:02,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:02,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:02,472 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) [2022-02-15 11:32:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:03,004 INFO L93 Difference]: Finished difference Result 8663 states and 22874 transitions. [2022-02-15 11:32:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:32:03,004 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 [2022-02-15 11:32:03,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:03,015 INFO L225 Difference]: With dead ends: 8663 [2022-02-15 11:32:03,016 INFO L226 Difference]: Without dead ends: 8141 [2022-02-15 11:32:03,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:32:03,016 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 298 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2496 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 [2022-02-15 11:32:03,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2496 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:03,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-02-15 11:32:03,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7317. [2022-02-15 11:32:03,109 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) [2022-02-15 11:32:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-02-15 11:32:03,122 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-02-15 11:32:03,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:03,122 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-02-15 11:32:03,122 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) [2022-02-15 11:32:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-02-15 11:32:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:03,130 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:03,131 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] [2022-02-15 11:32:03,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-02-15 11:32:03,131 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash -489373992, now seen corresponding path program 206 times [2022-02-15 11:32:03,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:03,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768417318] [2022-02-15 11:32:03,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:03,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:03,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:03,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768417318] [2022-02-15 11:32:03,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768417318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:03,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:03,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:03,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394176153] [2022-02-15 11:32:03,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:03,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:03,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:03,251 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) [2022-02-15 11:32:03,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:03,724 INFO L93 Difference]: Finished difference Result 8515 states and 22488 transitions. [2022-02-15 11:32:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:03,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:03,735 INFO L225 Difference]: With dead ends: 8515 [2022-02-15 11:32:03,735 INFO L226 Difference]: Without dead ends: 8036 [2022-02-15 11:32:03,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:03,736 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2573 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 [2022-02-15 11:32:03,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2573 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:03,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-02-15 11:32:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7321. [2022-02-15 11:32:03,817 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) [2022-02-15 11:32:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-02-15 11:32:03,828 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-02-15 11:32:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:03,828 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-02-15 11:32:03,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-02-15 11:32:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:03,836 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:03,836 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] [2022-02-15 11:32:03,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-02-15 11:32:03,836 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:03,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:03,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1138149126, now seen corresponding path program 207 times [2022-02-15 11:32:03,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:03,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829832774] [2022-02-15 11:32:03,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:03,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:03,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:03,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829832774] [2022-02-15 11:32:03,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829832774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:03,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:03,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:03,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810124835] [2022-02-15 11:32:03,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:03,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:03,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:03,977 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) [2022-02-15 11:32:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:04,437 INFO L93 Difference]: Finished difference Result 8433 states and 22267 transitions. [2022-02-15 11:32:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:04,438 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:04,448 INFO L225 Difference]: With dead ends: 8433 [2022-02-15 11:32:04,449 INFO L226 Difference]: Without dead ends: 7941 [2022-02-15 11:32:04,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:32:04,449 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 [2022-02-15 11:32:04,449 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] [2022-02-15 11:32:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2022-02-15 11:32:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7305. [2022-02-15 11:32:04,531 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) [2022-02-15 11:32:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-02-15 11:32:04,543 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-02-15 11:32:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:04,543 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-02-15 11:32:04,543 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) [2022-02-15 11:32:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-02-15 11:32:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:04,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:04,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:04,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-02-15 11:32:04,551 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:04,551 INFO L85 PathProgramCache]: Analyzing trace with hash 441409752, now seen corresponding path program 208 times [2022-02-15 11:32:04,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:04,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149300476] [2022-02-15 11:32:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:04,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:04,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:04,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149300476] [2022-02-15 11:32:04,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149300476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:04,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:04,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:04,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040489766] [2022-02-15 11:32:04,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:04,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:04,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:04,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:04,673 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) [2022-02-15 11:32:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:05,125 INFO L93 Difference]: Finished difference Result 8471 states and 22375 transitions. [2022-02-15 11:32:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:05,136 INFO L225 Difference]: With dead ends: 8471 [2022-02-15 11:32:05,136 INFO L226 Difference]: Without dead ends: 7992 [2022-02-15 11:32:05,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:32:05,136 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 236 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2392 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 [2022-02-15 11:32:05,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2392 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-15 11:32:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-15 11:32:05,221 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) [2022-02-15 11:32:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-02-15 11:32:05,233 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-02-15 11:32:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:05,233 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-02-15 11:32:05,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-02-15 11:32:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:05,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:05,241 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] [2022-02-15 11:32:05,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-02-15 11:32:05,241 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2068932870, now seen corresponding path program 209 times [2022-02-15 11:32:05,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:05,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074284371] [2022-02-15 11:32:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:05,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:05,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:05,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074284371] [2022-02-15 11:32:05,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074284371] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:05,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:05,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:05,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687149386] [2022-02-15 11:32:05,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:05,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:05,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:05,367 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) [2022-02-15 11:32:05,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:05,861 INFO L93 Difference]: Finished difference Result 8429 states and 22264 transitions. [2022-02-15 11:32:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:05,861 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:05,872 INFO L225 Difference]: With dead ends: 8429 [2022-02-15 11:32:05,872 INFO L226 Difference]: Without dead ends: 7949 [2022-02-15 11:32:05,872 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 [2022-02-15 11:32:05,872 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:05,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2397 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-02-15 11:32:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7317. [2022-02-15 11:32:05,964 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) [2022-02-15 11:32:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-15 11:32:05,978 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-15 11:32:05,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:05,978 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-15 11:32:05,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-15 11:32:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:05,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:05,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:05,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-02-15 11:32:05,987 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash 947875530, now seen corresponding path program 210 times [2022-02-15 11:32:05,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:05,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682825391] [2022-02-15 11:32:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:05,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:06,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:06,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682825391] [2022-02-15 11:32:06,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682825391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:06,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:06,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:06,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147465931] [2022-02-15 11:32:06,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:06,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:06,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:06,115 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) [2022-02-15 11:32:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:06,688 INFO L93 Difference]: Finished difference Result 8537 states and 22541 transitions. [2022-02-15 11:32:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:32:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:06,699 INFO L225 Difference]: With dead ends: 8537 [2022-02-15 11:32:06,699 INFO L226 Difference]: Without dead ends: 8017 [2022-02-15 11:32:06,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:32:06,701 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 [2022-02-15 11:32:06,701 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] [2022-02-15 11:32:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-02-15 11:32:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7313. [2022-02-15 11:32:06,813 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) [2022-02-15 11:32:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-15 11:32:06,825 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-15 11:32:06,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:06,825 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-15 11:32:06,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-15 11:32:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:06,833 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:06,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:06,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-02-15 11:32:06,834 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1020505254, now seen corresponding path program 211 times [2022-02-15 11:32:06,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:06,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336336751] [2022-02-15 11:32:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:06,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:06,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:06,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336336751] [2022-02-15 11:32:06,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336336751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:06,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:06,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:06,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387856628] [2022-02-15 11:32:06,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:06,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:06,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:06,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:06,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:06,949 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) [2022-02-15 11:32:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:07,482 INFO L93 Difference]: Finished difference Result 8635 states and 22797 transitions. [2022-02-15 11:32:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:32:07,482 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 [2022-02-15 11:32:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:07,493 INFO L225 Difference]: With dead ends: 8635 [2022-02-15 11:32:07,493 INFO L226 Difference]: Without dead ends: 8113 [2022-02-15 11:32:07,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:32:07,494 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 312 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2617 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 [2022-02-15 11:32:07,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2617 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2022-02-15 11:32:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 7317. [2022-02-15 11:32:07,584 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) [2022-02-15 11:32:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-02-15 11:32:07,597 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-02-15 11:32:07,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:07,597 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-02-15 11:32:07,597 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) [2022-02-15 11:32:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-02-15 11:32:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:07,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:07,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:07,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-02-15 11:32:07,606 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:07,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:07,606 INFO L85 PathProgramCache]: Analyzing trace with hash -537410096, now seen corresponding path program 212 times [2022-02-15 11:32:07,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:07,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561278421] [2022-02-15 11:32:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:07,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:07,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:07,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561278421] [2022-02-15 11:32:07,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561278421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:07,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:07,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:07,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282285014] [2022-02-15 11:32:07,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:07,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:07,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:07,724 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) [2022-02-15 11:32:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:08,159 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-02-15 11:32:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:08,159 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:08,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:08,170 INFO L225 Difference]: With dead ends: 8471 [2022-02-15 11:32:08,170 INFO L226 Difference]: Without dead ends: 7992 [2022-02-15 11:32:08,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:08,170 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 246 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2139 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 [2022-02-15 11:32:08,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2139 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:08,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-15 11:32:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-15 11:32:08,258 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) [2022-02-15 11:32:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-02-15 11:32:08,270 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-02-15 11:32:08,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:08,271 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-02-15 11:32:08,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-02-15 11:32:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:08,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:08,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:08,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-02-15 11:32:08,279 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1090113022, now seen corresponding path program 213 times [2022-02-15 11:32:08,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:08,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147405022] [2022-02-15 11:32:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:08,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:08,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:08,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147405022] [2022-02-15 11:32:08,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147405022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:08,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:08,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:08,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136265259] [2022-02-15 11:32:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:08,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:08,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:08,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:08,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:08,394 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) [2022-02-15 11:32:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:08,825 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-02-15 11:32:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:08,826 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 [2022-02-15 11:32:08,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:08,836 INFO L225 Difference]: With dead ends: 8405 [2022-02-15 11:32:08,836 INFO L226 Difference]: Without dead ends: 7917 [2022-02-15 11:32:08,837 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 [2022-02-15 11:32:08,837 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 [2022-02-15 11:32:08,837 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] [2022-02-15 11:32:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-15 11:32:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-02-15 11:32:08,920 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) [2022-02-15 11:32:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-15 11:32:08,932 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-15 11:32:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:08,932 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-15 11:32:08,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:08,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-15 11:32:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:08,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:08,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:08,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-02-15 11:32:08,940 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash -192231078, now seen corresponding path program 214 times [2022-02-15 11:32:08,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:08,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579473153] [2022-02-15 11:32:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:08,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:09,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:09,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579473153] [2022-02-15 11:32:09,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579473153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:09,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:09,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:09,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707434669] [2022-02-15 11:32:09,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:09,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:09,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:09,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:09,058 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) [2022-02-15 11:32:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:09,749 INFO L93 Difference]: Finished difference Result 8628 states and 22759 transitions. [2022-02-15 11:32:09,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:32:09,750 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 [2022-02-15 11:32:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:09,761 INFO L225 Difference]: With dead ends: 8628 [2022-02-15 11:32:09,761 INFO L226 Difference]: Without dead ends: 8063 [2022-02-15 11:32:09,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 11:32:09,761 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 [2022-02-15 11:32:09,762 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] [2022-02-15 11:32:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-02-15 11:32:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7313. [2022-02-15 11:32:09,850 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) [2022-02-15 11:32:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-15 11:32:09,863 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-15 11:32:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:09,863 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-15 11:32:09,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-15 11:32:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:09,871 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:09,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:09,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-02-15 11:32:09,872 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 672199984, now seen corresponding path program 215 times [2022-02-15 11:32:09,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:09,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436752658] [2022-02-15 11:32:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:09,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:09,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:09,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:09,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436752658] [2022-02-15 11:32:09,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436752658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:09,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:09,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:09,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289404339] [2022-02-15 11:32:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:09,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:09,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:09,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:09,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:09,991 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) [2022-02-15 11:32:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:10,578 INFO L93 Difference]: Finished difference Result 8515 states and 22463 transitions. [2022-02-15 11:32:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:32:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:10,589 INFO L225 Difference]: With dead ends: 8515 [2022-02-15 11:32:10,589 INFO L226 Difference]: Without dead ends: 7993 [2022-02-15 11:32:10,590 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 [2022-02-15 11:32:10,590 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 305 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2567 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 [2022-02-15 11:32:10,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2567 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-02-15 11:32:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7317. [2022-02-15 11:32:10,676 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) [2022-02-15 11:32:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-15 11:32:10,688 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-15 11:32:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:10,689 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-15 11:32:10,689 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) [2022-02-15 11:32:10,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-15 11:32:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:10,697 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:10,697 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] [2022-02-15 11:32:10,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-02-15 11:32:10,697 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:10,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash -885715366, now seen corresponding path program 216 times [2022-02-15 11:32:10,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:10,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712102052] [2022-02-15 11:32:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:10,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:10,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:10,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712102052] [2022-02-15 11:32:10,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712102052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:10,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:10,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:10,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959095081] [2022-02-15 11:32:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:10,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:10,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:10,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:10,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:10,816 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) [2022-02-15 11:32:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:11,251 INFO L93 Difference]: Finished difference Result 8375 states and 22099 transitions. [2022-02-15 11:32:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:11,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:11,262 INFO L225 Difference]: With dead ends: 8375 [2022-02-15 11:32:11,262 INFO L226 Difference]: Without dead ends: 7896 [2022-02-15 11:32:11,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:11,262 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 258 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2166 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 [2022-02-15 11:32:11,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2166 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-02-15 11:32:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7321. [2022-02-15 11:32:11,341 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) [2022-02-15 11:32:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19361 transitions. [2022-02-15 11:32:11,353 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19361 transitions. Word has length 109 [2022-02-15 11:32:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:11,353 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19361 transitions. [2022-02-15 11:32:11,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19361 transitions. [2022-02-15 11:32:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:11,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:11,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:11,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-02-15 11:32:11,361 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:11,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash 741807752, now seen corresponding path program 217 times [2022-02-15 11:32:11,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:11,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958436138] [2022-02-15 11:32:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:11,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:11,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:11,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958436138] [2022-02-15 11:32:11,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958436138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:11,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:11,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:11,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057050059] [2022-02-15 11:32:11,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:11,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:11,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:11,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:11,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:11,482 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) [2022-02-15 11:32:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:11,899 INFO L93 Difference]: Finished difference Result 8265 states and 21801 transitions. [2022-02-15 11:32:11,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:32:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:11,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:11,909 INFO L225 Difference]: With dead ends: 8265 [2022-02-15 11:32:11,909 INFO L226 Difference]: Without dead ends: 7765 [2022-02-15 11:32:11,909 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 [2022-02-15 11:32:11,910 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 207 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2411 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 [2022-02-15 11:32:11,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2411 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-02-15 11:32:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7297. [2022-02-15 11:32:11,992 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) [2022-02-15 11:32:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19315 transitions. [2022-02-15 11:32:12,004 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19315 transitions. Word has length 109 [2022-02-15 11:32:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:12,005 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19315 transitions. [2022-02-15 11:32:12,005 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) [2022-02-15 11:32:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19315 transitions. [2022-02-15 11:32:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:12,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:12,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:12,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-02-15 11:32:12,013 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:12,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1547592560, now seen corresponding path program 218 times [2022-02-15 11:32:12,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:12,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402144316] [2022-02-15 11:32:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:12,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:12,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:12,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402144316] [2022-02-15 11:32:12,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402144316] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:12,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:12,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:12,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859858567] [2022-02-15 11:32:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:12,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:12,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:12,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:12,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:12,138 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) [2022-02-15 11:32:12,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:12,565 INFO L93 Difference]: Finished difference Result 8303 states and 21917 transitions. [2022-02-15 11:32:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:32:12,565 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 [2022-02-15 11:32:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:12,574 INFO L225 Difference]: With dead ends: 8303 [2022-02-15 11:32:12,574 INFO L226 Difference]: Without dead ends: 7824 [2022-02-15 11:32:12,575 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 [2022-02-15 11:32:12,575 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 214 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2651 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 [2022-02-15 11:32:12,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2651 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:12,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-02-15 11:32:12,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7317. [2022-02-15 11:32:12,646 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) [2022-02-15 11:32:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-15 11:32:12,656 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-15 11:32:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:12,657 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-15 11:32:12,657 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) [2022-02-15 11:32:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-15 11:32:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:12,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:12,664 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] [2022-02-15 11:32:12,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-02-15 11:32:12,664 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1119851618, now seen corresponding path program 219 times [2022-02-15 11:32:12,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:12,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97182170] [2022-02-15 11:32:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:12,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:12,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:12,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97182170] [2022-02-15 11:32:12,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97182170] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:12,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:12,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:12,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939620832] [2022-02-15 11:32:12,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:12,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:12,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:12,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:12,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:12,787 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) [2022-02-15 11:32:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:13,241 INFO L93 Difference]: Finished difference Result 8269 states and 21828 transitions. [2022-02-15 11:32:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:13,250 INFO L225 Difference]: With dead ends: 8269 [2022-02-15 11:32:13,250 INFO L226 Difference]: Without dead ends: 7789 [2022-02-15 11:32:13,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 11:32:13,250 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 [2022-02-15 11:32:13,250 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] [2022-02-15 11:32:13,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-02-15 11:32:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7313. [2022-02-15 11:32:13,323 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) [2022-02-15 11:32:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-15 11:32:13,334 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-15 11:32:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:13,334 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-15 11:32:13,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-15 11:32:13,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:13,343 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:13,343 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] [2022-02-15 11:32:13,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-02-15 11:32:13,343 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:13,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2054058338, now seen corresponding path program 220 times [2022-02-15 11:32:13,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:13,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664379173] [2022-02-15 11:32:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:13,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:13,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:13,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664379173] [2022-02-15 11:32:13,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664379173] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:13,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:13,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:13,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382709470] [2022-02-15 11:32:13,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:13,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:13,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:13,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:13,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:13,464 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) [2022-02-15 11:32:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:14,047 INFO L93 Difference]: Finished difference Result 8305 states and 21923 transitions. [2022-02-15 11:32:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:32:14,047 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:14,057 INFO L225 Difference]: With dead ends: 8305 [2022-02-15 11:32:14,058 INFO L226 Difference]: Without dead ends: 7785 [2022-02-15 11:32:14,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 11:32:14,058 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 267 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2724 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 [2022-02-15 11:32:14,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2724 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-02-15 11:32:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7309. [2022-02-15 11:32:14,141 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) [2022-02-15 11:32:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-15 11:32:14,153 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-15 11:32:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:14,153 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-15 11:32:14,153 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) [2022-02-15 11:32:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-15 11:32:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:14,161 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:14,161 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] [2022-02-15 11:32:14,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-02-15 11:32:14,161 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:14,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1528922802, now seen corresponding path program 221 times [2022-02-15 11:32:14,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:14,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719950688] [2022-02-15 11:32:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:14,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:14,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:14,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719950688] [2022-02-15 11:32:14,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719950688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:14,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:14,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:14,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142486795] [2022-02-15 11:32:14,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:14,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:14,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:14,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:14,282 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) [2022-02-15 11:32:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:14,933 INFO L93 Difference]: Finished difference Result 8281 states and 21857 transitions. [2022-02-15 11:32:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 11:32:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:14,943 INFO L225 Difference]: With dead ends: 8281 [2022-02-15 11:32:14,943 INFO L226 Difference]: Without dead ends: 7721 [2022-02-15 11:32:14,944 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 [2022-02-15 11:32:14,944 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 [2022-02-15 11:32:14,944 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] [2022-02-15 11:32:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-02-15 11:32:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7305. [2022-02-15 11:32:15,025 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) [2022-02-15 11:32:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-02-15 11:32:15,037 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-02-15 11:32:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:15,037 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-02-15 11:32:15,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-02-15 11:32:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:15,045 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:15,045 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] [2022-02-15 11:32:15,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-02-15 11:32:15,045 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:15,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:15,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1338609398, now seen corresponding path program 222 times [2022-02-15 11:32:15,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:15,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293238627] [2022-02-15 11:32:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:15,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:15,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:15,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293238627] [2022-02-15 11:32:15,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293238627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:15,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:15,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:15,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391408123] [2022-02-15 11:32:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:15,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:15,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:15,172 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) [2022-02-15 11:32:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:15,609 INFO L93 Difference]: Finished difference Result 8351 states and 22049 transitions. [2022-02-15 11:32:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:15,620 INFO L225 Difference]: With dead ends: 8351 [2022-02-15 11:32:15,620 INFO L226 Difference]: Without dead ends: 7872 [2022-02-15 11:32:15,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:32:15,620 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 240 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2250 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 [2022-02-15 11:32:15,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2250 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-02-15 11:32:15,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 7317. [2022-02-15 11:32:15,712 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) [2022-02-15 11:32:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-15 11:32:15,725 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-15 11:32:15,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:15,725 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-15 11:32:15,725 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) [2022-02-15 11:32:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-15 11:32:15,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:15,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:15,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:15,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-02-15 11:32:15,734 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:15,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:15,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1328834780, now seen corresponding path program 223 times [2022-02-15 11:32:15,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:15,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880188902] [2022-02-15 11:32:15,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:15,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:15,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:15,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880188902] [2022-02-15 11:32:15,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880188902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:15,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:15,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:15,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170941748] [2022-02-15 11:32:15,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:15,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:15,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:15,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:15,859 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) [2022-02-15 11:32:16,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:16,321 INFO L93 Difference]: Finished difference Result 8309 states and 21938 transitions. [2022-02-15 11:32:16,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:16,321 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:16,331 INFO L225 Difference]: With dead ends: 8309 [2022-02-15 11:32:16,331 INFO L226 Difference]: Without dead ends: 7829 [2022-02-15 11:32:16,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:32:16,332 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 [2022-02-15 11:32:16,332 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] [2022-02-15 11:32:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2022-02-15 11:32:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7313. [2022-02-15 11:32:16,411 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) [2022-02-15 11:32:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-15 11:32:16,423 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-15 11:32:16,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:16,423 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-15 11:32:16,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-15 11:32:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:16,430 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:16,430 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] [2022-02-15 11:32:16,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-02-15 11:32:16,430 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075176, now seen corresponding path program 224 times [2022-02-15 11:32:16,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:16,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400323219] [2022-02-15 11:32:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:16,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:16,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:16,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400323219] [2022-02-15 11:32:16,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400323219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:16,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:16,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:16,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390162965] [2022-02-15 11:32:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:16,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:16,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:16,575 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) [2022-02-15 11:32:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:17,114 INFO L93 Difference]: Finished difference Result 8437 states and 22270 transitions. [2022-02-15 11:32:17,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:32:17,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:17,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:17,125 INFO L225 Difference]: With dead ends: 8437 [2022-02-15 11:32:17,126 INFO L226 Difference]: Without dead ends: 7917 [2022-02-15 11:32:17,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:32:17,126 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 345 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2478 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 [2022-02-15 11:32:17,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 2478 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-15 11:32:17,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-02-15 11:32:17,216 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) [2022-02-15 11:32:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-15 11:32:17,228 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-15 11:32:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:17,228 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-15 11:32:17,229 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) [2022-02-15 11:32:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-15 11:32:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:17,237 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:17,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:17,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-02-15 11:32:17,237 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1917704900, now seen corresponding path program 225 times [2022-02-15 11:32:17,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:17,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776532835] [2022-02-15 11:32:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:17,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:17,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:17,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776532835] [2022-02-15 11:32:17,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776532835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:17,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:17,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:17,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573329591] [2022-02-15 11:32:17,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:17,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:17,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:17,355 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) [2022-02-15 11:32:17,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:17,863 INFO L93 Difference]: Finished difference Result 8439 states and 22262 transitions. [2022-02-15 11:32:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:32:17,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:17,874 INFO L225 Difference]: With dead ends: 8439 [2022-02-15 11:32:17,874 INFO L226 Difference]: Without dead ends: 7917 [2022-02-15 11:32:17,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:32:17,875 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 327 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2573 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 [2022-02-15 11:32:17,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 2573 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-15 11:32:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7313. [2022-02-15 11:32:17,959 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) [2022-02-15 11:32:17,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-15 11:32:17,971 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-15 11:32:17,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:17,971 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-15 11:32:17,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-15 11:32:17,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:17,979 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:17,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:17,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-02-15 11:32:17,979 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:17,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash 359789550, now seen corresponding path program 226 times [2022-02-15 11:32:17,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:17,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377216585] [2022-02-15 11:32:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:17,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:18,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:18,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377216585] [2022-02-15 11:32:18,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377216585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:18,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:18,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:18,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565087664] [2022-02-15 11:32:18,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:18,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:18,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:18,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:18,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:18,100 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) [2022-02-15 11:32:18,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:18,551 INFO L93 Difference]: Finished difference Result 8291 states and 21876 transitions. [2022-02-15 11:32:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:18,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:18,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:18,562 INFO L225 Difference]: With dead ends: 8291 [2022-02-15 11:32:18,562 INFO L226 Difference]: Without dead ends: 7812 [2022-02-15 11:32:18,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:18,563 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2447 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 [2022-02-15 11:32:18,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2447 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-02-15 11:32:18,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 7317. [2022-02-15 11:32:18,651 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) [2022-02-15 11:32:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-15 11:32:18,663 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-15 11:32:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:18,664 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-15 11:32:18,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-15 11:32:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:18,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:18,672 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] [2022-02-15 11:32:18,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-02-15 11:32:18,673 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:18,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1987312668, now seen corresponding path program 227 times [2022-02-15 11:32:18,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:18,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059056129] [2022-02-15 11:32:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:18,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:18,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:18,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059056129] [2022-02-15 11:32:18,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059056129] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:18,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:18,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:18,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446408198] [2022-02-15 11:32:18,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:18,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:18,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:18,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:18,796 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) [2022-02-15 11:32:19,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:19,214 INFO L93 Difference]: Finished difference Result 8209 states and 21655 transitions. [2022-02-15 11:32:19,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:19,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:19,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:19,225 INFO L225 Difference]: With dead ends: 8209 [2022-02-15 11:32:19,225 INFO L226 Difference]: Without dead ends: 7717 [2022-02-15 11:32:19,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:19,226 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 236 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2074 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 [2022-02-15 11:32:19,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2074 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2022-02-15 11:32:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7301. [2022-02-15 11:32:19,321 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) [2022-02-15 11:32:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19322 transitions. [2022-02-15 11:32:19,335 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19322 transitions. Word has length 109 [2022-02-15 11:32:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:19,335 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19322 transitions. [2022-02-15 11:32:19,336 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) [2022-02-15 11:32:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19322 transitions. [2022-02-15 11:32:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:19,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:19,345 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] [2022-02-15 11:32:19,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-02-15 11:32:19,345 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1290573294, now seen corresponding path program 228 times [2022-02-15 11:32:19,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:19,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298350376] [2022-02-15 11:32:19,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:19,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:19,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:19,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298350376] [2022-02-15 11:32:19,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298350376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:19,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:19,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:19,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109694994] [2022-02-15 11:32:19,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:19,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:19,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:19,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:19,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:19,469 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) [2022-02-15 11:32:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:19,896 INFO L93 Difference]: Finished difference Result 8387 states and 22148 transitions. [2022-02-15 11:32:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:19,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:19,907 INFO L225 Difference]: With dead ends: 8387 [2022-02-15 11:32:19,907 INFO L226 Difference]: Without dead ends: 7908 [2022-02-15 11:32:19,907 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 [2022-02-15 11:32:19,907 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 243 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:19,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 2433 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-02-15 11:32:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-02-15 11:32:19,994 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) [2022-02-15 11:32:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-15 11:32:20,006 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-15 11:32:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:20,006 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-15 11:32:20,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-15 11:32:20,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:20,015 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:20,015 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] [2022-02-15 11:32:20,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-02-15 11:32:20,015 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:20,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1376870884, now seen corresponding path program 229 times [2022-02-15 11:32:20,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:20,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669365769] [2022-02-15 11:32:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:20,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:20,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:20,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669365769] [2022-02-15 11:32:20,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669365769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:20,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:20,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:20,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759613029] [2022-02-15 11:32:20,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:20,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:20,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:20,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:20,141 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) [2022-02-15 11:32:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:20,598 INFO L93 Difference]: Finished difference Result 8345 states and 22037 transitions. [2022-02-15 11:32:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:20,599 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 [2022-02-15 11:32:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:20,608 INFO L225 Difference]: With dead ends: 8345 [2022-02-15 11:32:20,609 INFO L226 Difference]: Without dead ends: 7865 [2022-02-15 11:32:20,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:32:20,609 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 227 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2598 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 [2022-02-15 11:32:20,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2598 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:20,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2022-02-15 11:32:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7313. [2022-02-15 11:32:20,695 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) [2022-02-15 11:32:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-15 11:32:20,708 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-15 11:32:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:20,708 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-15 11:32:20,708 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) [2022-02-15 11:32:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-15 11:32:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:20,717 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:20,717 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:20,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-02-15 11:32:20,717 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:20,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1797039072, now seen corresponding path program 230 times [2022-02-15 11:32:20,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:20,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470633307] [2022-02-15 11:32:20,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:20,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:20,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:20,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470633307] [2022-02-15 11:32:20,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470633307] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:20,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:20,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:20,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313111473] [2022-02-15 11:32:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:20,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:20,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:20,836 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) [2022-02-15 11:32:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:21,373 INFO L93 Difference]: Finished difference Result 8453 states and 22314 transitions. [2022-02-15 11:32:21,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 11:32:21,373 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 [2022-02-15 11:32:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:21,383 INFO L225 Difference]: With dead ends: 8453 [2022-02-15 11:32:21,384 INFO L226 Difference]: Without dead ends: 7933 [2022-02-15 11:32:21,384 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 [2022-02-15 11:32:21,384 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 [2022-02-15 11:32:21,384 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] [2022-02-15 11:32:21,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-02-15 11:32:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7309. [2022-02-15 11:32:21,467 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) [2022-02-15 11:32:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-15 11:32:21,479 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-15 11:32:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:21,479 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-15 11:32:21,479 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) [2022-02-15 11:32:21,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-15 11:32:21,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:21,487 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:21,488 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] [2022-02-15 11:32:21,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-02-15 11:32:21,488 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:21,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:21,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668796, now seen corresponding path program 231 times [2022-02-15 11:32:21,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:21,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289902448] [2022-02-15 11:32:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:21,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:21,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:21,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289902448] [2022-02-15 11:32:21,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289902448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:21,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:21,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:21,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492182713] [2022-02-15 11:32:21,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:21,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:21,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:21,605 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) [2022-02-15 11:32:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:22,147 INFO L93 Difference]: Finished difference Result 8551 states and 22570 transitions. [2022-02-15 11:32:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:32:22,147 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:22,157 INFO L225 Difference]: With dead ends: 8551 [2022-02-15 11:32:22,157 INFO L226 Difference]: Without dead ends: 8029 [2022-02-15 11:32:22,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:32:22,158 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 339 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2581 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 [2022-02-15 11:32:22,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 2581 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-02-15 11:32:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7313. [2022-02-15 11:32:22,234 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) [2022-02-15 11:32:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-15 11:32:22,244 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-15 11:32:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:22,244 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-15 11:32:22,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-15 11:32:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:22,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:22,251 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] [2022-02-15 11:32:22,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-02-15 11:32:22,252 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash 311753446, now seen corresponding path program 232 times [2022-02-15 11:32:22,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:22,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215778505] [2022-02-15 11:32:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:22,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:22,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:22,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215778505] [2022-02-15 11:32:22,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215778505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:22,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:22,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:22,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804247357] [2022-02-15 11:32:22,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:22,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:22,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:22,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:22,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:22,374 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) [2022-02-15 11:32:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:22,818 INFO L93 Difference]: Finished difference Result 8387 states and 22140 transitions. [2022-02-15 11:32:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:22,818 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 [2022-02-15 11:32:22,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:22,829 INFO L225 Difference]: With dead ends: 8387 [2022-02-15 11:32:22,829 INFO L226 Difference]: Without dead ends: 7908 [2022-02-15 11:32:22,829 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 [2022-02-15 11:32:22,829 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 237 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2257 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 [2022-02-15 11:32:22,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2257 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-02-15 11:32:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-02-15 11:32:22,913 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) [2022-02-15 11:32:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-15 11:32:22,925 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-15 11:32:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:22,926 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-15 11:32:22,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-15 11:32:22,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:22,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:22,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:22,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-02-15 11:32:22,934 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1939276564, now seen corresponding path program 233 times [2022-02-15 11:32:22,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:22,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579414039] [2022-02-15 11:32:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:22,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:23,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:23,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579414039] [2022-02-15 11:32:23,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579414039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:23,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:23,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:23,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903300637] [2022-02-15 11:32:23,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:23,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:23,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:23,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:23,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:23,058 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) [2022-02-15 11:32:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:23,503 INFO L93 Difference]: Finished difference Result 8321 states and 21963 transitions. [2022-02-15 11:32:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:23,514 INFO L225 Difference]: With dead ends: 8321 [2022-02-15 11:32:23,514 INFO L226 Difference]: Without dead ends: 7833 [2022-02-15 11:32:23,515 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 [2022-02-15 11:32:23,515 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 245 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:23,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2263 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-02-15 11:32:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7305. [2022-02-15 11:32:23,595 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) [2022-02-15 11:32:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-02-15 11:32:23,607 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-02-15 11:32:23,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:23,607 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-02-15 11:32:23,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:23,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-02-15 11:32:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:23,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:23,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:23,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-02-15 11:32:23,615 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 656932464, now seen corresponding path program 234 times [2022-02-15 11:32:23,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:23,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581503215] [2022-02-15 11:32:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:23,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:23,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:23,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581503215] [2022-02-15 11:32:23,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581503215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:23,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:23,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:23,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208719028] [2022-02-15 11:32:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:23,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:23,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:23,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:23,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:23,738 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) [2022-02-15 11:32:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:24,456 INFO L93 Difference]: Finished difference Result 8572 states and 22609 transitions. [2022-02-15 11:32:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 11:32:24,456 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 [2022-02-15 11:32:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:24,466 INFO L225 Difference]: With dead ends: 8572 [2022-02-15 11:32:24,466 INFO L226 Difference]: Without dead ends: 8007 [2022-02-15 11:32:24,467 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 [2022-02-15 11:32:24,467 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 365 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:24,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2601 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:24,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-02-15 11:32:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7309. [2022-02-15 11:32:24,548 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) [2022-02-15 11:32:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-02-15 11:32:24,560 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-02-15 11:32:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:24,560 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-02-15 11:32:24,560 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) [2022-02-15 11:32:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-02-15 11:32:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:24,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:24,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:24,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-02-15 11:32:24,568 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1521363526, now seen corresponding path program 235 times [2022-02-15 11:32:24,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:24,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279723222] [2022-02-15 11:32:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:24,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:24,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:24,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279723222] [2022-02-15 11:32:24,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279723222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:24,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:24,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:24,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176362335] [2022-02-15 11:32:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:24,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:24,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:24,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:24,690 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) [2022-02-15 11:32:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:25,256 INFO L93 Difference]: Finished difference Result 8455 states and 22302 transitions. [2022-02-15 11:32:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:32:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:25,267 INFO L225 Difference]: With dead ends: 8455 [2022-02-15 11:32:25,267 INFO L226 Difference]: Without dead ends: 7933 [2022-02-15 11:32:25,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:32:25,268 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 336 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2576 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 [2022-02-15 11:32:25,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2576 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:25,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-02-15 11:32:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7313. [2022-02-15 11:32:25,354 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) [2022-02-15 11:32:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-02-15 11:32:25,366 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-02-15 11:32:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:25,366 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-02-15 11:32:25,366 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) [2022-02-15 11:32:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-02-15 11:32:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:25,374 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:25,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:25,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-02-15 11:32:25,375 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:25,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash -36551824, now seen corresponding path program 236 times [2022-02-15 11:32:25,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:25,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915147566] [2022-02-15 11:32:25,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:25,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:25,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:25,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915147566] [2022-02-15 11:32:25,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915147566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:25,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:25,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:25,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877135385] [2022-02-15 11:32:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:25,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:25,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:25,528 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) [2022-02-15 11:32:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:25,968 INFO L93 Difference]: Finished difference Result 8307 states and 21916 transitions. [2022-02-15 11:32:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:25,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:25,982 INFO L225 Difference]: With dead ends: 8307 [2022-02-15 11:32:25,982 INFO L226 Difference]: Without dead ends: 7828 [2022-02-15 11:32:25,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:25,983 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 233 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:25,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2239 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:25,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2022-02-15 11:32:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7317. [2022-02-15 11:32:26,072 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) [2022-02-15 11:32:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19350 transitions. [2022-02-15 11:32:26,085 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19350 transitions. Word has length 109 [2022-02-15 11:32:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:26,085 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19350 transitions. [2022-02-15 11:32:26,085 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) [2022-02-15 11:32:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19350 transitions. [2022-02-15 11:32:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:26,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:26,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:26,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-02-15 11:32:26,094 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:26,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1590971294, now seen corresponding path program 237 times [2022-02-15 11:32:26,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:26,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908057590] [2022-02-15 11:32:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:26,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:26,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:26,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908057590] [2022-02-15 11:32:26,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908057590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:26,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:26,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:26,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508967111] [2022-02-15 11:32:26,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:26,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:26,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:26,222 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) [2022-02-15 11:32:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:26,645 INFO L93 Difference]: Finished difference Result 8209 states and 21651 transitions. [2022-02-15 11:32:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:32:26,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:26,656 INFO L225 Difference]: With dead ends: 8209 [2022-02-15 11:32:26,656 INFO L226 Difference]: Without dead ends: 7713 [2022-02-15 11:32:26,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:26,657 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 [2022-02-15 11:32:26,657 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] [2022-02-15 11:32:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7713 states. [2022-02-15 11:32:26,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7713 to 7297. [2022-02-15 11:32:26,766 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) [2022-02-15 11:32:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19311 transitions. [2022-02-15 11:32:26,778 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19311 transitions. Word has length 109 [2022-02-15 11:32:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:26,779 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19311 transitions. [2022-02-15 11:32:26,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19311 transitions. [2022-02-15 11:32:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:26,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:26,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:26,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-02-15 11:32:26,786 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:26,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash 187059838, now seen corresponding path program 238 times [2022-02-15 11:32:26,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:26,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068720569] [2022-02-15 11:32:26,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:26,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:26,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:26,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068720569] [2022-02-15 11:32:26,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068720569] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:26,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:26,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:26,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002489467] [2022-02-15 11:32:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:26,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:26,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:26,907 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) [2022-02-15 11:32:27,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:27,311 INFO L93 Difference]: Finished difference Result 8243 states and 21752 transitions. [2022-02-15 11:32:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:27,312 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 [2022-02-15 11:32:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:27,322 INFO L225 Difference]: With dead ends: 8243 [2022-02-15 11:32:27,322 INFO L226 Difference]: Without dead ends: 7764 [2022-02-15 11:32:27,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 11:32:27,322 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 290 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2259 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 [2022-02-15 11:32:27,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2259 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:27,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-02-15 11:32:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7313. [2022-02-15 11:32:27,403 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) [2022-02-15 11:32:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-15 11:32:27,415 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-15 11:32:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:27,415 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-15 11:32:27,415 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) [2022-02-15 11:32:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-15 11:32:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:27,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:27,423 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] [2022-02-15 11:32:27,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-02-15 11:32:27,423 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:27,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1814582956, now seen corresponding path program 239 times [2022-02-15 11:32:27,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:27,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949465982] [2022-02-15 11:32:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:27,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:27,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:27,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:27,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949465982] [2022-02-15 11:32:27,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949465982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:27,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:27,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:27,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672495140] [2022-02-15 11:32:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:27,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:27,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:27,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:27,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:27,541 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) [2022-02-15 11:32:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:27,989 INFO L93 Difference]: Finished difference Result 8201 states and 21641 transitions. [2022-02-15 11:32:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:27,989 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 [2022-02-15 11:32:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:27,999 INFO L225 Difference]: With dead ends: 8201 [2022-02-15 11:32:27,999 INFO L226 Difference]: Without dead ends: 7721 [2022-02-15 11:32:28,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 11:32:28,000 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 [2022-02-15 11:32:28,000 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] [2022-02-15 11:32:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-02-15 11:32:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7309. [2022-02-15 11:32:28,085 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) [2022-02-15 11:32:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-15 11:32:28,097 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-15 11:32:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:28,098 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-15 11:32:28,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:28,098 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-15 11:32:28,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:28,110 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:28,111 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:28,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-02-15 11:32:28,111 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:28,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:28,111 INFO L85 PathProgramCache]: Analyzing trace with hash 693525616, now seen corresponding path program 240 times [2022-02-15 11:32:28,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:28,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446719317] [2022-02-15 11:32:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:28,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:28,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:28,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446719317] [2022-02-15 11:32:28,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446719317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:28,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:28,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:28,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063181231] [2022-02-15 11:32:28,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:28,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:28,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:28,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:28,253 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) [2022-02-15 11:32:28,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:28,828 INFO L93 Difference]: Finished difference Result 8189 states and 21608 transitions. [2022-02-15 11:32:28,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 11:32:28,828 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 [2022-02-15 11:32:28,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:28,841 INFO L225 Difference]: With dead ends: 8189 [2022-02-15 11:32:28,841 INFO L226 Difference]: Without dead ends: 7669 [2022-02-15 11:32:28,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:32:28,841 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 343 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2430 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 [2022-02-15 11:32:28,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2430 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2022-02-15 11:32:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7305. [2022-02-15 11:32:28,923 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) [2022-02-15 11:32:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-02-15 11:32:28,935 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-02-15 11:32:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:28,935 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-02-15 11:32:28,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:28,935 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-02-15 11:32:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:28,943 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:28,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:28,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-02-15 11:32:28,943 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash 766155340, now seen corresponding path program 241 times [2022-02-15 11:32:28,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:28,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104888747] [2022-02-15 11:32:28,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:28,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:29,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:29,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104888747] [2022-02-15 11:32:29,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104888747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:29,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:29,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:29,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309790089] [2022-02-15 11:32:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:29,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:29,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:29,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:29,065 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) [2022-02-15 11:32:29,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:29,623 INFO L93 Difference]: Finished difference Result 8383 states and 22112 transitions. [2022-02-15 11:32:29,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 11:32:29,624 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:29,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:29,634 INFO L225 Difference]: With dead ends: 8383 [2022-02-15 11:32:29,634 INFO L226 Difference]: Without dead ends: 7861 [2022-02-15 11:32:29,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 11:32:29,634 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 404 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2520 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 [2022-02-15 11:32:29,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2520 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2022-02-15 11:32:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7309. [2022-02-15 11:32:29,720 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) [2022-02-15 11:32:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-02-15 11:32:29,732 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-02-15 11:32:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:29,732 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-02-15 11:32:29,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-02-15 11:32:29,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:29,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:29,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:29,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-02-15 11:32:29,740 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:29,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:29,741 INFO L85 PathProgramCache]: Analyzing trace with hash -791760010, now seen corresponding path program 242 times [2022-02-15 11:32:29,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:29,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401560156] [2022-02-15 11:32:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:29,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:29,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:29,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401560156] [2022-02-15 11:32:29,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401560156] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:29,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:29,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:29,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028730826] [2022-02-15 11:32:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:29,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:29,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:29,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:29,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:29,864 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) [2022-02-15 11:32:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:30,295 INFO L93 Difference]: Finished difference Result 8219 states and 21682 transitions. [2022-02-15 11:32:30,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:30,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:30,306 INFO L225 Difference]: With dead ends: 8219 [2022-02-15 11:32:30,306 INFO L226 Difference]: Without dead ends: 7740 [2022-02-15 11:32:30,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:30,306 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 320 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:30,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 2246 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-02-15 11:32:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7313. [2022-02-15 11:32:30,396 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) [2022-02-15 11:32:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-02-15 11:32:30,408 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-02-15 11:32:30,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:30,408 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-02-15 11:32:30,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:30,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-02-15 11:32:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:30,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:30,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-02-15 11:32:30,416 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 835763108, now seen corresponding path program 243 times [2022-02-15 11:32:30,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:30,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834559799] [2022-02-15 11:32:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:30,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:30,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:30,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834559799] [2022-02-15 11:32:30,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834559799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:30,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:30,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:30,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559591358] [2022-02-15 11:32:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:30,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:30,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:30,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:30,540 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) [2022-02-15 11:32:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:30,967 INFO L93 Difference]: Finished difference Result 8153 states and 21505 transitions. [2022-02-15 11:32:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 11:32:30,967 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:30,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:30,977 INFO L225 Difference]: With dead ends: 8153 [2022-02-15 11:32:30,977 INFO L226 Difference]: Without dead ends: 7665 [2022-02-15 11:32:30,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:30,977 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 299 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:30,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2165 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:30,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2022-02-15 11:32:31,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 7301. [2022-02-15 11:32:31,058 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) [2022-02-15 11:32:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19318 transitions. [2022-02-15 11:32:31,070 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19318 transitions. Word has length 109 [2022-02-15 11:32:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:31,070 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19318 transitions. [2022-02-15 11:32:31,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19318 transitions. [2022-02-15 11:32:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:31,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:31,078 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] [2022-02-15 11:32:31,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-02-15 11:32:31,078 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:31,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash -446580992, now seen corresponding path program 244 times [2022-02-15 11:32:31,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:31,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215067750] [2022-02-15 11:32:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:31,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:31,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:31,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215067750] [2022-02-15 11:32:31,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215067750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:31,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:31,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:31,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455134130] [2022-02-15 11:32:31,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:31,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:31,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:31,201 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) [2022-02-15 11:32:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:31,900 INFO L93 Difference]: Finished difference Result 8516 states and 22459 transitions. [2022-02-15 11:32:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:32:31,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:31,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:31,912 INFO L225 Difference]: With dead ends: 8516 [2022-02-15 11:32:31,912 INFO L226 Difference]: Without dead ends: 7951 [2022-02-15 11:32:31,912 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 [2022-02-15 11:32:31,912 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 488 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2392 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 [2022-02-15 11:32:31,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2392 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-02-15 11:32:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7305. [2022-02-15 11:32:31,996 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) [2022-02-15 11:32:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19325 transitions. [2022-02-15 11:32:32,008 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19325 transitions. Word has length 109 [2022-02-15 11:32:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:32,008 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19325 transitions. [2022-02-15 11:32:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19325 transitions. [2022-02-15 11:32:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:32,016 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:32,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:32,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-02-15 11:32:32,016 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash 417850070, now seen corresponding path program 245 times [2022-02-15 11:32:32,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:32,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433432031] [2022-02-15 11:32:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:32,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:32,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:32,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433432031] [2022-02-15 11:32:32,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433432031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:32,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:32,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:32,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278488945] [2022-02-15 11:32:32,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:32,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:32,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:32,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:32,136 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) [2022-02-15 11:32:32,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:32,678 INFO L93 Difference]: Finished difference Result 8391 states and 22130 transitions. [2022-02-15 11:32:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:32:32,678 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:32,688 INFO L225 Difference]: With dead ends: 8391 [2022-02-15 11:32:32,688 INFO L226 Difference]: Without dead ends: 7869 [2022-02-15 11:32:32,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 11:32:32,689 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 410 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2522 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 [2022-02-15 11:32:32,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2522 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-02-15 11:32:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7309. [2022-02-15 11:32:32,782 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) [2022-02-15 11:32:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19332 transitions. [2022-02-15 11:32:32,795 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19332 transitions. Word has length 109 [2022-02-15 11:32:32,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:32,795 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19332 transitions. [2022-02-15 11:32:32,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19332 transitions. [2022-02-15 11:32:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:32,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:32,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:32,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-02-15 11:32:32,804 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:32,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1140065280, now seen corresponding path program 246 times [2022-02-15 11:32:32,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:32,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116229783] [2022-02-15 11:32:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:32,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:32,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:32,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116229783] [2022-02-15 11:32:32,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116229783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:32,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:32,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:32,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594754856] [2022-02-15 11:32:32,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:32,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:32,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:32,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:32,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:32,931 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) [2022-02-15 11:32:33,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:33,350 INFO L93 Difference]: Finished difference Result 8227 states and 21700 transitions. [2022-02-15 11:32:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:33,350 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 [2022-02-15 11:32:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:33,360 INFO L225 Difference]: With dead ends: 8227 [2022-02-15 11:32:33,360 INFO L226 Difference]: Without dead ends: 7748 [2022-02-15 11:32:33,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:33,360 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 [2022-02-15 11:32:33,360 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] [2022-02-15 11:32:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7748 states. [2022-02-15 11:32:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7748 to 7313. [2022-02-15 11:32:33,441 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) [2022-02-15 11:32:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19339 transitions. [2022-02-15 11:32:33,453 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19339 transitions. Word has length 109 [2022-02-15 11:32:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:33,453 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19339 transitions. [2022-02-15 11:32:33,453 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) [2022-02-15 11:32:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19339 transitions. [2022-02-15 11:32:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:33,461 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:33,461 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] [2022-02-15 11:32:33,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-02-15 11:32:33,461 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 487457838, now seen corresponding path program 247 times [2022-02-15 11:32:33,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:33,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139840608] [2022-02-15 11:32:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:33,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:33,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:33,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139840608] [2022-02-15 11:32:33,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139840608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:33,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:33,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:33,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485796922] [2022-02-15 11:32:33,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:33,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:33,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:33,580 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) [2022-02-15 11:32:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:33,998 INFO L93 Difference]: Finished difference Result 8153 states and 21501 transitions. [2022-02-15 11:32:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 11:32:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:34,007 INFO L225 Difference]: With dead ends: 8153 [2022-02-15 11:32:34,007 INFO L226 Difference]: Without dead ends: 7661 [2022-02-15 11:32:34,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 11:32:34,007 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 [2022-02-15 11:32:34,007 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] [2022-02-15 11:32:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-02-15 11:32:34,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7297. [2022-02-15 11:32:34,075 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) [2022-02-15 11:32:34,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19307 transitions. [2022-02-15 11:32:34,085 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19307 transitions. Word has length 109 [2022-02-15 11:32:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:34,086 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19307 transitions. [2022-02-15 11:32:34,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19307 transitions. [2022-02-15 11:32:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:34,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:34,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:34,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-02-15 11:32:34,093 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:34,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash -94104470, now seen corresponding path program 248 times [2022-02-15 11:32:34,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:34,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418433213] [2022-02-15 11:32:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:34,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:34,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:34,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:34,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418433213] [2022-02-15 11:32:34,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418433213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:34,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:34,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:34,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622589617] [2022-02-15 11:32:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:34,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:34,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:34,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:34,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:34,212 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) [2022-02-15 11:32:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:34,888 INFO L93 Difference]: Finished difference Result 8378 states and 22067 transitions. [2022-02-15 11:32:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 11:32:34,888 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 [2022-02-15 11:32:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:34,897 INFO L225 Difference]: With dead ends: 8378 [2022-02-15 11:32:34,897 INFO L226 Difference]: Without dead ends: 7770 [2022-02-15 11:32:34,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-15 11:32:34,897 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 494 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 2726 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 [2022-02-15 11:32:34,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 2726 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-02-15 11:32:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7254. [2022-02-15 11:32:34,971 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) [2022-02-15 11:32:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7254 states to 7254 states and 19191 transitions. [2022-02-15 11:32:34,983 INFO L78 Accepts]: Start accepts. Automaton has 7254 states and 19191 transitions. Word has length 109 [2022-02-15 11:32:34,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:34,983 INFO L470 AbstractCegarLoop]: Abstraction has 7254 states and 19191 transitions. [2022-02-15 11:32:34,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7254 states and 19191 transitions. [2022-02-15 11:32:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:34,991 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:34,991 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] [2022-02-15 11:32:34,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-02-15 11:32:34,991 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1930391086, now seen corresponding path program 249 times [2022-02-15 11:32:34,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:34,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488211250] [2022-02-15 11:32:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:34,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:35,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:35,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:35,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488211250] [2022-02-15 11:32:35,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488211250] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:35,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:35,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:35,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713694158] [2022-02-15 11:32:35,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:35,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:35,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:35,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:35,116 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) [2022-02-15 11:32:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:35,846 INFO L93 Difference]: Finished difference Result 8273 states and 21793 transitions. [2022-02-15 11:32:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:32:35,847 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 [2022-02-15 11:32:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:35,855 INFO L225 Difference]: With dead ends: 8273 [2022-02-15 11:32:35,856 INFO L226 Difference]: Without dead ends: 7708 [2022-02-15 11:32:35,856 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 [2022-02-15 11:32:35,856 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 435 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2630 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 [2022-02-15 11:32:35,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2630 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-02-15 11:32:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7258. [2022-02-15 11:32:35,930 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) [2022-02-15 11:32:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7258 states to 7258 states and 19198 transitions. [2022-02-15 11:32:35,940 INFO L78 Accepts]: Start accepts. Automaton has 7258 states and 19198 transitions. Word has length 109 [2022-02-15 11:32:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:35,940 INFO L470 AbstractCegarLoop]: Abstraction has 7258 states and 19198 transitions. [2022-02-15 11:32:35,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:35,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7258 states and 19198 transitions. [2022-02-15 11:32:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:35,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:35,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:35,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-02-15 11:32:35,947 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1500145148, now seen corresponding path program 250 times [2022-02-15 11:32:35,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:35,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617135229] [2022-02-15 11:32:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:35,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:36,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:36,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617135229] [2022-02-15 11:32:36,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617135229] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:36,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:36,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:36,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241261743] [2022-02-15 11:32:36,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:36,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:36,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:36,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:36,074 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) [2022-02-15 11:32:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:36,624 INFO L93 Difference]: Finished difference Result 8168 states and 21519 transitions. [2022-02-15 11:32:36,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 11:32:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:36,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:36,634 INFO L225 Difference]: With dead ends: 8168 [2022-02-15 11:32:36,634 INFO L226 Difference]: Without dead ends: 7646 [2022-02-15 11:32:36,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 11:32:36,634 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 366 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:36,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2345 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2022-02-15 11:32:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7262. [2022-02-15 11:32:36,713 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) [2022-02-15 11:32:36,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 19205 transitions. [2022-02-15 11:32:36,773 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 19205 transitions. Word has length 109 [2022-02-15 11:32:36,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:36,773 INFO L470 AbstractCegarLoop]: Abstraction has 7262 states and 19205 transitions. [2022-02-15 11:32:36,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:36,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 19205 transitions. [2022-02-15 11:32:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:36,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:36,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:36,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-02-15 11:32:36,780 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1236906798, now seen corresponding path program 251 times [2022-02-15 11:32:36,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:36,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979761269] [2022-02-15 11:32:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:36,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:36,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:36,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979761269] [2022-02-15 11:32:36,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979761269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:36,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:36,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:36,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665829741] [2022-02-15 11:32:36,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:36,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:36,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:36,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:36,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:36,920 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) [2022-02-15 11:32:37,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:37,341 INFO L93 Difference]: Finished difference Result 8044 states and 21199 transitions. [2022-02-15 11:32:37,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 11:32:37,342 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:37,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:37,351 INFO L225 Difference]: With dead ends: 8044 [2022-02-15 11:32:37,351 INFO L226 Difference]: Without dead ends: 7565 [2022-02-15 11:32:37,351 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 [2022-02-15 11:32:37,352 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 360 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:37,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 1934 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 11:32:37,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-02-15 11:32:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7266. [2022-02-15 11:32:37,424 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) [2022-02-15 11:32:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 19212 transitions. [2022-02-15 11:32:37,435 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 19212 transitions. Word has length 109 [2022-02-15 11:32:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:37,435 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 19212 transitions. [2022-02-15 11:32:37,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 19212 transitions. [2022-02-15 11:32:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 11:32:37,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:37,443 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] [2022-02-15 11:32:37,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-02-15 11:32:37,443 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1430537380, now seen corresponding path program 252 times [2022-02-15 11:32:37,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:37,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038531931] [2022-02-15 11:32:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:37,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:37,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:37,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038531931] [2022-02-15 11:32:37,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038531931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:37,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:37,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 11:32:37,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774373184] [2022-02-15 11:32:37,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:37,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 11:32:37,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 11:32:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-15 11:32:37,561 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) [2022-02-15 11:32:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:37,922 INFO L93 Difference]: Finished difference Result 7742 states and 20401 transitions. [2022-02-15 11:32:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 11:32:37,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-15 11:32:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:37,931 INFO L225 Difference]: With dead ends: 7742 [2022-02-15 11:32:37,931 INFO L226 Difference]: Without dead ends: 7154 [2022-02-15 11:32:37,932 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 [2022-02-15 11:32:37,932 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 [2022-02-15 11:32:37,932 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] [2022-02-15 11:32:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2022-02-15 11:32:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7154. [2022-02-15 11:32:38,015 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) [2022-02-15 11:32:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 18953 transitions. [2022-02-15 11:32:38,027 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 18953 transitions. Word has length 109 [2022-02-15 11:32:38,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:38,027 INFO L470 AbstractCegarLoop]: Abstraction has 7154 states and 18953 transitions. [2022-02-15 11:32:38,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:38,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 18953 transitions. [2022-02-15 11:32:38,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:32:38,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:38,035 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] [2022-02-15 11:32:38,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-02-15 11:32:38,035 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:38,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash 280838126, now seen corresponding path program 1 times [2022-02-15 11:32:38,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:38,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877779618] [2022-02-15 11:32:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:38,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:38,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:38,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877779618] [2022-02-15 11:32:38,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877779618] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:38,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:38,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:32:38,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690807204] [2022-02-15 11:32:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:38,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:32:38,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:32:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:32:38,671 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) [2022-02-15 11:32:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:47,335 INFO L93 Difference]: Finished difference Result 21119 states and 56064 transitions. [2022-02-15 11:32:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-15 11:32:47,335 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 [2022-02-15 11:32:47,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:47,366 INFO L225 Difference]: With dead ends: 21119 [2022-02-15 11:32:47,367 INFO L226 Difference]: Without dead ends: 19831 [2022-02-15 11:32:47,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3886 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3896, Invalid=12106, Unknown=0, NotChecked=0, Total=16002 [2022-02-15 11:32:47,369 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 2245 mSDsluCounter, 12669 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 13037 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:47,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2245 Valid, 13037 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-15 11:32:47,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19831 states. [2022-02-15 11:32:47,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19831 to 8350. [2022-02-15 11:32:47,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8350 states, 8349 states have (on average 2.6578033297400885) internal successors, (22190), 8349 states have internal predecessors, (22190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 22190 transitions. [2022-02-15 11:32:47,567 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 22190 transitions. Word has length 153 [2022-02-15 11:32:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:47,567 INFO L470 AbstractCegarLoop]: Abstraction has 8350 states and 22190 transitions. [2022-02-15 11:32:47,567 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) [2022-02-15 11:32:47,567 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 22190 transitions. [2022-02-15 11:32:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:32:47,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:47,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:47,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-02-15 11:32:47,577 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash 129332142, now seen corresponding path program 2 times [2022-02-15 11:32:47,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:47,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955236168] [2022-02-15 11:32:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:47,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:48,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:48,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955236168] [2022-02-15 11:32:48,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955236168] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:48,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:48,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:32:48,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821550743] [2022-02-15 11:32:48,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:48,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:32:48,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:48,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:32:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:32:48,142 INFO L87 Difference]: Start difference. First operand 8350 states and 22190 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) [2022-02-15 11:32:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:52,075 INFO L93 Difference]: Finished difference Result 20429 states and 54186 transitions. [2022-02-15 11:32:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:32:52,076 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 [2022-02-15 11:32:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:52,103 INFO L225 Difference]: With dead ends: 20429 [2022-02-15 11:32:52,103 INFO L226 Difference]: Without dead ends: 19938 [2022-02-15 11:32:52,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1199, Invalid=3913, Unknown=0, NotChecked=0, Total=5112 [2022-02-15 11:32:52,104 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1436 mSDsluCounter, 11787 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 12111 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:52,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 12111 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:32:52,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19938 states. [2022-02-15 11:32:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19938 to 8382. [2022-02-15 11:32:52,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 8381 states have (on average 2.6576780813745375) internal successors, (22274), 8381 states have internal predecessors, (22274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 22274 transitions. [2022-02-15 11:32:52,320 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 22274 transitions. Word has length 153 [2022-02-15 11:32:52,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:52,320 INFO L470 AbstractCegarLoop]: Abstraction has 8382 states and 22274 transitions. [2022-02-15 11:32:52,320 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) [2022-02-15 11:32:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 22274 transitions. [2022-02-15 11:32:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:32:52,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:52,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:52,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-02-15 11:32:52,329 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:52,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1756855260, now seen corresponding path program 3 times [2022-02-15 11:32:52,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:52,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672913561] [2022-02-15 11:32:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:52,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:52,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:52,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672913561] [2022-02-15 11:32:52,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672913561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:52,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:52,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:32:52,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192027038] [2022-02-15 11:32:52,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:52,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:32:52,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:32:52,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:32:52,854 INFO L87 Difference]: Start difference. First operand 8382 states and 22274 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) [2022-02-15 11:32:56,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:32:56,901 INFO L93 Difference]: Finished difference Result 20426 states and 54176 transitions. [2022-02-15 11:32:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:32:56,902 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 [2022-02-15 11:32:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:32:56,931 INFO L225 Difference]: With dead ends: 20426 [2022-02-15 11:32:56,931 INFO L226 Difference]: Without dead ends: 19934 [2022-02-15 11:32:56,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1269, Invalid=4583, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:32:56,932 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1447 mSDsluCounter, 11947 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 12278 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:32:56,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1447 Valid, 12278 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:32:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19934 states. [2022-02-15 11:32:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19934 to 8378. [2022-02-15 11:32:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 8377 states have (on average 2.6576339978512595) internal successors, (22263), 8377 states have internal predecessors, (22263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:32:57,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 22263 transitions. [2022-02-15 11:32:57,116 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 22263 transitions. Word has length 153 [2022-02-15 11:32:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:32:57,116 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 22263 transitions. [2022-02-15 11:32:57,116 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) [2022-02-15 11:32:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 22263 transitions. [2022-02-15 11:32:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:32:57,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:32:57,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:32:57,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-02-15 11:32:57,126 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:32:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:32:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 635797920, now seen corresponding path program 4 times [2022-02-15 11:32:57,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:32:57,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362559135] [2022-02-15 11:32:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:32:57,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:32:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:32:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:32:57,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:32:57,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362559135] [2022-02-15 11:32:57,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362559135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:32:57,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:32:57,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:32:57,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862934673] [2022-02-15 11:32:57,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:32:57,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:32:57,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:32:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:32:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:32:57,722 INFO L87 Difference]: Start difference. First operand 8378 states and 22263 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) [2022-02-15 11:33:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:02,437 INFO L93 Difference]: Finished difference Result 20462 states and 54271 transitions. [2022-02-15 11:33:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:33:02,438 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 [2022-02-15 11:33:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:02,466 INFO L225 Difference]: With dead ends: 20462 [2022-02-15 11:33:02,466 INFO L226 Difference]: Without dead ends: 19930 [2022-02-15 11:33:02,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1610, Invalid=5872, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:33:02,468 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1528 mSDsluCounter, 12710 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 13033 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:02,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 13033 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2022-02-15 11:33:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 8374. [2022-02-15 11:33:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8374 states, 8373 states have (on average 2.6575898722082885) internal successors, (22252), 8373 states have internal predecessors, (22252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8374 states to 8374 states and 22252 transitions. [2022-02-15 11:33:02,647 INFO L78 Accepts]: Start accepts. Automaton has 8374 states and 22252 transitions. Word has length 153 [2022-02-15 11:33:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:02,647 INFO L470 AbstractCegarLoop]: Abstraction has 8374 states and 22252 transitions. [2022-02-15 11:33:02,647 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) [2022-02-15 11:33:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8374 states and 22252 transitions. [2022-02-15 11:33:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:02,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:02,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:02,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-02-15 11:33:02,657 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:02,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:02,657 INFO L85 PathProgramCache]: Analyzing trace with hash 110662384, now seen corresponding path program 5 times [2022-02-15 11:33:02,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:02,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618535654] [2022-02-15 11:33:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:02,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:03,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:03,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618535654] [2022-02-15 11:33:03,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618535654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:03,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:03,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:03,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11964392] [2022-02-15 11:33:03,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:03,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:03,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:03,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:03,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:03,219 INFO L87 Difference]: Start difference. First operand 8374 states and 22252 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) [2022-02-15 11:33:08,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:08,718 INFO L93 Difference]: Finished difference Result 20498 states and 54366 transitions. [2022-02-15 11:33:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 11:33:08,718 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 [2022-02-15 11:33:08,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:08,744 INFO L225 Difference]: With dead ends: 20498 [2022-02-15 11:33:08,744 INFO L226 Difference]: Without dead ends: 19926 [2022-02-15 11:33:08,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2023, Invalid=7289, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 11:33:08,744 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 1594 mSDsluCounter, 12874 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 13204 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:08,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 13204 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-02-15 11:33:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 8370. [2022-02-15 11:33:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8370 states, 8369 states have (on average 2.6575457043852313) internal successors, (22241), 8369 states have internal predecessors, (22241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8370 states to 8370 states and 22241 transitions. [2022-02-15 11:33:08,900 INFO L78 Accepts]: Start accepts. Automaton has 8370 states and 22241 transitions. Word has length 153 [2022-02-15 11:33:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:08,900 INFO L470 AbstractCegarLoop]: Abstraction has 8370 states and 22241 transitions. [2022-02-15 11:33:08,900 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) [2022-02-15 11:33:08,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8370 states and 22241 transitions. [2022-02-15 11:33:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:08,909 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:08,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:08,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-02-15 11:33:08,909 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:08,909 INFO L85 PathProgramCache]: Analyzing trace with hash 762955650, now seen corresponding path program 6 times [2022-02-15 11:33:08,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:08,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181296361] [2022-02-15 11:33:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:08,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:09,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:09,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181296361] [2022-02-15 11:33:09,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181296361] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:09,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:09,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:09,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600708803] [2022-02-15 11:33:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:09,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:09,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:09,464 INFO L87 Difference]: Start difference. First operand 8370 states and 22241 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) [2022-02-15 11:33:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:15,581 INFO L93 Difference]: Finished difference Result 20534 states and 54461 transitions. [2022-02-15 11:33:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-15 11:33:15,582 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 [2022-02-15 11:33:15,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:15,609 INFO L225 Difference]: With dead ends: 20534 [2022-02-15 11:33:15,610 INFO L226 Difference]: Without dead ends: 19922 [2022-02-15 11:33:15,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2431 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2505, Invalid=8837, Unknown=0, NotChecked=0, Total=11342 [2022-02-15 11:33:15,611 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 1706 mSDsluCounter, 12403 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 12755 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:15,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1706 Valid, 12755 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:15,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19922 states. [2022-02-15 11:33:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19922 to 8366. [2022-02-15 11:33:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 8365 states have (on average 2.657501494321578) internal successors, (22230), 8365 states have internal predecessors, (22230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:15,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 22230 transitions. [2022-02-15 11:33:15,772 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 22230 transitions. Word has length 153 [2022-02-15 11:33:15,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:15,772 INFO L470 AbstractCegarLoop]: Abstraction has 8366 states and 22230 transitions. [2022-02-15 11:33:15,773 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) [2022-02-15 11:33:15,773 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 22230 transitions. [2022-02-15 11:33:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:15,782 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:15,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:15,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-02-15 11:33:15,782 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:15,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:15,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1972639894, now seen corresponding path program 7 times [2022-02-15 11:33:15,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:15,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231758314] [2022-02-15 11:33:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:15,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:16,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:16,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231758314] [2022-02-15 11:33:16,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231758314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:16,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:16,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:16,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781976435] [2022-02-15 11:33:16,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:16,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:16,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:16,344 INFO L87 Difference]: Start difference. First operand 8366 states and 22230 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) [2022-02-15 11:33:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:23,445 INFO L93 Difference]: Finished difference Result 20650 states and 54768 transitions. [2022-02-15 11:33:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-15 11:33:23,446 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 [2022-02-15 11:33:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:23,475 INFO L225 Difference]: With dead ends: 20650 [2022-02-15 11:33:23,476 INFO L226 Difference]: Without dead ends: 19910 [2022-02-15 11:33:23,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3057, Invalid=10515, Unknown=0, NotChecked=0, Total=13572 [2022-02-15 11:33:23,478 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1805 mSDsluCounter, 12539 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 12899 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:23,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 12899 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19910 states. [2022-02-15 11:33:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19910 to 8354. [2022-02-15 11:33:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 2.6573686100802107) internal successors, (22197), 8353 states have internal predecessors, (22197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 22197 transitions. [2022-02-15 11:33:23,710 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 22197 transitions. Word has length 153 [2022-02-15 11:33:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:23,711 INFO L470 AbstractCegarLoop]: Abstraction has 8354 states and 22197 transitions. [2022-02-15 11:33:23,711 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) [2022-02-15 11:33:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 22197 transitions. [2022-02-15 11:33:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:23,720 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:23,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:23,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-02-15 11:33:23,720 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1230030440, now seen corresponding path program 8 times [2022-02-15 11:33:23,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:23,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811425873] [2022-02-15 11:33:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:23,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:24,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:24,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811425873] [2022-02-15 11:33:24,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811425873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:24,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:24,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:24,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126528356] [2022-02-15 11:33:24,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:24,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:24,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:24,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:24,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:24,324 INFO L87 Difference]: Start difference. First operand 8354 states and 22197 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) [2022-02-15 11:33:31,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:31,941 INFO L93 Difference]: Finished difference Result 20603 states and 54641 transitions. [2022-02-15 11:33:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-15 11:33:31,941 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 [2022-02-15 11:33:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:31,970 INFO L225 Difference]: With dead ends: 20603 [2022-02-15 11:33:31,970 INFO L226 Difference]: Without dead ends: 19779 [2022-02-15 11:33:31,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=3465, Invalid=11297, Unknown=0, NotChecked=0, Total=14762 [2022-02-15 11:33:31,972 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 1925 mSDsluCounter, 13129 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 13476 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:31,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1925 Valid, 13476 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19779 states. [2022-02-15 11:33:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19779 to 8298. [2022-02-15 11:33:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 8297 states have (on average 2.6572255031939256) internal successors, (22047), 8297 states have internal predecessors, (22047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 22047 transitions. [2022-02-15 11:33:32,138 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 22047 transitions. Word has length 153 [2022-02-15 11:33:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:32,138 INFO L470 AbstractCegarLoop]: Abstraction has 8298 states and 22047 transitions. [2022-02-15 11:33:32,138 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) [2022-02-15 11:33:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 22047 transitions. [2022-02-15 11:33:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:32,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:32,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:32,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-02-15 11:33:32,147 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:32,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:32,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1436230792, now seen corresponding path program 9 times [2022-02-15 11:33:32,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:32,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244982391] [2022-02-15 11:33:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:32,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:32,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:32,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244982391] [2022-02-15 11:33:32,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244982391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:32,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:32,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:32,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389447101] [2022-02-15 11:33:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:32,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:32,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:32,764 INFO L87 Difference]: Start difference. First operand 8298 states and 22047 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) [2022-02-15 11:33:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:36,655 INFO L93 Difference]: Finished difference Result 20832 states and 55263 transitions. [2022-02-15 11:33:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:33:36,655 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 [2022-02-15 11:33:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:36,688 INFO L225 Difference]: With dead ends: 20832 [2022-02-15 11:33:36,688 INFO L226 Difference]: Without dead ends: 20341 [2022-02-15 11:33:36,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1237, Invalid=4019, Unknown=0, NotChecked=0, Total=5256 [2022-02-15 11:33:36,689 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1424 mSDsluCounter, 12170 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:36,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 12471 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20341 states. [2022-02-15 11:33:36,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20341 to 8342. [2022-02-15 11:33:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8342 states, 8341 states have (on average 2.6572353434839946) internal successors, (22164), 8341 states have internal predecessors, (22164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 22164 transitions. [2022-02-15 11:33:36,887 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 22164 transitions. Word has length 153 [2022-02-15 11:33:36,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:36,888 INFO L470 AbstractCegarLoop]: Abstraction has 8342 states and 22164 transitions. [2022-02-15 11:33:36,888 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) [2022-02-15 11:33:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 22164 transitions. [2022-02-15 11:33:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:36,897 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:36,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:36,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-02-15 11:33:36,898 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:36,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash 191292326, now seen corresponding path program 10 times [2022-02-15 11:33:36,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:36,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597511076] [2022-02-15 11:33:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:36,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:37,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:37,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597511076] [2022-02-15 11:33:37,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597511076] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:37,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:37,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:37,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372229619] [2022-02-15 11:33:37,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:37,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:37,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:37,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:37,494 INFO L87 Difference]: Start difference. First operand 8342 states and 22164 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) [2022-02-15 11:33:41,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:41,581 INFO L93 Difference]: Finished difference Result 20810 states and 55207 transitions. [2022-02-15 11:33:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:33:41,582 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 [2022-02-15 11:33:41,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:41,611 INFO L225 Difference]: With dead ends: 20810 [2022-02-15 11:33:41,611 INFO L226 Difference]: Without dead ends: 20318 [2022-02-15 11:33:41,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1280, Invalid=4572, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:33:41,612 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1440 mSDsluCounter, 12252 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 12571 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:41,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 12571 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20318 states. [2022-02-15 11:33:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20318 to 8338. [2022-02-15 11:33:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 8337 states have (on average 2.6571908360321457) internal successors, (22153), 8337 states have internal predecessors, (22153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 22153 transitions. [2022-02-15 11:33:41,786 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 22153 transitions. Word has length 153 [2022-02-15 11:33:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:41,787 INFO L470 AbstractCegarLoop]: Abstraction has 8338 states and 22153 transitions. [2022-02-15 11:33:41,787 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) [2022-02-15 11:33:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 22153 transitions. [2022-02-15 11:33:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:41,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:41,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:41,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-02-15 11:33:41,797 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash -929765014, now seen corresponding path program 11 times [2022-02-15 11:33:41,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:41,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206472891] [2022-02-15 11:33:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:41,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:42,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:42,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206472891] [2022-02-15 11:33:42,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206472891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:42,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:42,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:42,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016792061] [2022-02-15 11:33:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:42,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:42,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:42,316 INFO L87 Difference]: Start difference. First operand 8338 states and 22153 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) [2022-02-15 11:33:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:46,853 INFO L93 Difference]: Finished difference Result 20846 states and 55302 transitions. [2022-02-15 11:33:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:33:46,853 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 [2022-02-15 11:33:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:46,885 INFO L225 Difference]: With dead ends: 20846 [2022-02-15 11:33:46,885 INFO L226 Difference]: Without dead ends: 20314 [2022-02-15 11:33:46,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1633, Invalid=5849, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:33:46,886 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1526 mSDsluCounter, 11285 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 11637 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:46,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 11637 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:33:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20314 states. [2022-02-15 11:33:47,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20314 to 8334. [2022-02-15 11:33:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.657146285851434) internal successors, (22142), 8333 states have internal predecessors, (22142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22142 transitions. [2022-02-15 11:33:47,079 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22142 transitions. Word has length 153 [2022-02-15 11:33:47,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:47,079 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22142 transitions. [2022-02-15 11:33:47,079 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) [2022-02-15 11:33:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22142 transitions. [2022-02-15 11:33:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:47,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:47,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:47,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-02-15 11:33:47,088 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1454900550, now seen corresponding path program 12 times [2022-02-15 11:33:47,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:47,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130616443] [2022-02-15 11:33:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:47,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:47,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:47,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130616443] [2022-02-15 11:33:47,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130616443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:47,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:47,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:47,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580424909] [2022-02-15 11:33:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:47,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:47,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:47,618 INFO L87 Difference]: Start difference. First operand 8334 states and 22142 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) [2022-02-15 11:33:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:33:53,078 INFO L93 Difference]: Finished difference Result 20882 states and 55397 transitions. [2022-02-15 11:33:53,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 11:33:53,078 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 [2022-02-15 11:33:53,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:33:53,110 INFO L225 Difference]: With dead ends: 20882 [2022-02-15 11:33:53,111 INFO L226 Difference]: Without dead ends: 20310 [2022-02-15 11:33:53,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2052, Invalid=7260, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 11:33:53,112 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1609 mSDsluCounter, 11988 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:33:53,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1609 Valid, 12335 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:33:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20310 states. [2022-02-15 11:33:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20310 to 8330. [2022-02-15 11:33:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.657101692880298) internal successors, (22131), 8329 states have internal predecessors, (22131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:33:53,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22131 transitions. [2022-02-15 11:33:53,302 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22131 transitions. Word has length 153 [2022-02-15 11:33:53,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:33:53,302 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22131 transitions. [2022-02-15 11:33:53,302 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) [2022-02-15 11:33:53,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22131 transitions. [2022-02-15 11:33:53,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:33:53,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:33:53,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:33:53,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-02-15 11:33:53,312 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:33:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:33:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash -802607284, now seen corresponding path program 13 times [2022-02-15 11:33:53,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:33:53,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145034323] [2022-02-15 11:33:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:33:53,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:33:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:33:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:33:53,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:33:53,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145034323] [2022-02-15 11:33:53,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145034323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:33:53,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:33:53,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:33:53,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692040719] [2022-02-15 11:33:53,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:33:53,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:33:53,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:33:53,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:33:53,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:33:53,888 INFO L87 Difference]: Start difference. First operand 8330 states and 22131 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) [2022-02-15 11:34:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:00,186 INFO L93 Difference]: Finished difference Result 20918 states and 55492 transitions. [2022-02-15 11:34:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-15 11:34:00,186 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 [2022-02-15 11:34:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:00,215 INFO L225 Difference]: With dead ends: 20918 [2022-02-15 11:34:00,215 INFO L226 Difference]: Without dead ends: 20306 [2022-02-15 11:34:00,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2543, Invalid=8799, Unknown=0, NotChecked=0, Total=11342 [2022-02-15 11:34:00,217 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 1674 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 13070 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:00,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1674 Valid, 13070 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20306 states. [2022-02-15 11:34:00,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20306 to 8326. [2022-02-15 11:34:00,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.657057057057057) internal successors, (22120), 8325 states have internal predecessors, (22120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22120 transitions. [2022-02-15 11:34:00,389 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22120 transitions. Word has length 153 [2022-02-15 11:34:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:00,389 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22120 transitions. [2022-02-15 11:34:00,389 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) [2022-02-15 11:34:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22120 transitions. [2022-02-15 11:34:00,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:00,399 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:00,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:00,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-02-15 11:34:00,399 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:00,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:00,399 INFO L85 PathProgramCache]: Analyzing trace with hash 407076960, now seen corresponding path program 14 times [2022-02-15 11:34:00,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:00,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721834409] [2022-02-15 11:34:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:00,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:00,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:00,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721834409] [2022-02-15 11:34:00,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721834409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:00,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:00,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:00,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113335327] [2022-02-15 11:34:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:00,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:00,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:00,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:00,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:00,912 INFO L87 Difference]: Start difference. First operand 8326 states and 22120 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) [2022-02-15 11:34:08,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:08,022 INFO L93 Difference]: Finished difference Result 21378 states and 56701 transitions. [2022-02-15 11:34:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-15 11:34:08,022 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 [2022-02-15 11:34:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:08,051 INFO L225 Difference]: With dead ends: 21378 [2022-02-15 11:34:08,052 INFO L226 Difference]: Without dead ends: 20638 [2022-02-15 11:34:08,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3061 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3061, Invalid=10279, Unknown=0, NotChecked=0, Total=13340 [2022-02-15 11:34:08,053 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 1855 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:08,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1855 Valid, 12576 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:08,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20638 states. [2022-02-15 11:34:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20638 to 8314. [2022-02-15 11:34:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8314 states, 8313 states have (on average 2.6559605437266933) internal successors, (22079), 8313 states have internal predecessors, (22079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8314 states to 8314 states and 22079 transitions. [2022-02-15 11:34:08,232 INFO L78 Accepts]: Start accepts. Automaton has 8314 states and 22079 transitions. Word has length 153 [2022-02-15 11:34:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:08,232 INFO L470 AbstractCegarLoop]: Abstraction has 8314 states and 22079 transitions. [2022-02-15 11:34:08,232 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) [2022-02-15 11:34:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8314 states and 22079 transitions. [2022-02-15 11:34:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:08,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:08,241 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] [2022-02-15 11:34:08,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-02-15 11:34:08,241 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:08,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -962304004, now seen corresponding path program 15 times [2022-02-15 11:34:08,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:08,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946275713] [2022-02-15 11:34:08,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:08,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:08,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:08,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946275713] [2022-02-15 11:34:08,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946275713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:08,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:08,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:08,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769798883] [2022-02-15 11:34:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:08,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:08,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:08,837 INFO L87 Difference]: Start difference. First operand 8314 states and 22079 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) [2022-02-15 11:34:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:13,029 INFO L93 Difference]: Finished difference Result 20760 states and 55053 transitions. [2022-02-15 11:34:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-15 11:34:13,029 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 [2022-02-15 11:34:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:13,060 INFO L225 Difference]: With dead ends: 20760 [2022-02-15 11:34:13,060 INFO L226 Difference]: Without dead ends: 20269 [2022-02-15 11:34:13,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1309, Invalid=4241, Unknown=0, NotChecked=0, Total=5550 [2022-02-15 11:34:13,061 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1420 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:13,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 12499 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:13,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20269 states. [2022-02-15 11:34:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20269 to 8334. [2022-02-15 11:34:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.65570622824913) internal successors, (22130), 8333 states have internal predecessors, (22130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22130 transitions. [2022-02-15 11:34:13,232 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22130 transitions. Word has length 153 [2022-02-15 11:34:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:13,232 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22130 transitions. [2022-02-15 11:34:13,232 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) [2022-02-15 11:34:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22130 transitions. [2022-02-15 11:34:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:13,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:13,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:13,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-02-15 11:34:13,242 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:13,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:13,242 INFO L85 PathProgramCache]: Analyzing trace with hash 665219114, now seen corresponding path program 16 times [2022-02-15 11:34:13,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:13,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936479055] [2022-02-15 11:34:13,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:13,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:13,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:13,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936479055] [2022-02-15 11:34:13,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936479055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:13,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:13,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:13,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386450280] [2022-02-15 11:34:13,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:13,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:13,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:13,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:13,762 INFO L87 Difference]: Start difference. First operand 8334 states and 22130 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) [2022-02-15 11:34:17,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:17,801 INFO L93 Difference]: Finished difference Result 20726 states and 54964 transitions. [2022-02-15 11:34:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:34:17,802 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 [2022-02-15 11:34:17,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:17,831 INFO L225 Difference]: With dead ends: 20726 [2022-02-15 11:34:17,831 INFO L226 Difference]: Without dead ends: 20234 [2022-02-15 11:34:17,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1290, Invalid=4562, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:34:17,832 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1455 mSDsluCounter, 11652 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 11985 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:17,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 11985 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:34:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20234 states. [2022-02-15 11:34:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20234 to 8330. [2022-02-15 11:34:17,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.655660943690719) internal successors, (22119), 8329 states have internal predecessors, (22119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22119 transitions. [2022-02-15 11:34:18,009 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22119 transitions. Word has length 153 [2022-02-15 11:34:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:18,009 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22119 transitions. [2022-02-15 11:34:18,009 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) [2022-02-15 11:34:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22119 transitions. [2022-02-15 11:34:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:18,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:18,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:18,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-02-15 11:34:18,019 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:18,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash -455838226, now seen corresponding path program 17 times [2022-02-15 11:34:18,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:18,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035807242] [2022-02-15 11:34:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:18,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:18,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:18,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035807242] [2022-02-15 11:34:18,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035807242] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:18,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:18,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:18,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207630914] [2022-02-15 11:34:18,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:18,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:18,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:18,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:18,534 INFO L87 Difference]: Start difference. First operand 8330 states and 22119 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) [2022-02-15 11:34:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:23,325 INFO L93 Difference]: Finished difference Result 20762 states and 55059 transitions. [2022-02-15 11:34:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:34:23,325 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 [2022-02-15 11:34:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:23,356 INFO L225 Difference]: With dead ends: 20762 [2022-02-15 11:34:23,356 INFO L226 Difference]: Without dead ends: 20230 [2022-02-15 11:34:23,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1651, Invalid=5831, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:34:23,358 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1514 mSDsluCounter, 11843 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 12181 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:23,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 12181 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:34:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20230 states. [2022-02-15 11:34:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20230 to 8326. [2022-02-15 11:34:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6556156156156154) internal successors, (22108), 8325 states have internal predecessors, (22108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22108 transitions. [2022-02-15 11:34:23,538 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22108 transitions. Word has length 153 [2022-02-15 11:34:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:23,538 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22108 transitions. [2022-02-15 11:34:23,538 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) [2022-02-15 11:34:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22108 transitions. [2022-02-15 11:34:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:23,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:23,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:23,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-02-15 11:34:23,549 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:23,549 INFO L85 PathProgramCache]: Analyzing trace with hash -980973762, now seen corresponding path program 18 times [2022-02-15 11:34:23,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:23,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094874823] [2022-02-15 11:34:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:23,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:24,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:24,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094874823] [2022-02-15 11:34:24,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094874823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:24,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:24,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:24,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178052270] [2022-02-15 11:34:24,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:24,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:24,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:24,115 INFO L87 Difference]: Start difference. First operand 8326 states and 22108 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) [2022-02-15 11:34:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:29,480 INFO L93 Difference]: Finished difference Result 20990 states and 55658 transitions. [2022-02-15 11:34:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-15 11:34:29,481 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 [2022-02-15 11:34:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:29,507 INFO L225 Difference]: With dead ends: 20990 [2022-02-15 11:34:29,507 INFO L226 Difference]: Without dead ends: 20418 [2022-02-15 11:34:29,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1765 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2039, Invalid=7081, Unknown=0, NotChecked=0, Total=9120 [2022-02-15 11:34:29,508 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1608 mSDsluCounter, 12516 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 12846 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:29,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 12846 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20418 states. [2022-02-15 11:34:29,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20418 to 8322. [2022-02-15 11:34:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.6555702439610624) internal successors, (22097), 8321 states have internal predecessors, (22097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22097 transitions. [2022-02-15 11:34:29,673 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22097 transitions. Word has length 153 [2022-02-15 11:34:29,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:29,673 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22097 transitions. [2022-02-15 11:34:29,673 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) [2022-02-15 11:34:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22097 transitions. [2022-02-15 11:34:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:29,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:29,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:29,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-02-15 11:34:29,682 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1171287166, now seen corresponding path program 19 times [2022-02-15 11:34:29,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:29,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712773423] [2022-02-15 11:34:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:29,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:30,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:30,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712773423] [2022-02-15 11:34:30,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712773423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:30,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:30,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:30,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552488862] [2022-02-15 11:34:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:30,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:30,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:30,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:30,232 INFO L87 Difference]: Start difference. First operand 8322 states and 22097 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) [2022-02-15 11:34:34,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:34,481 INFO L93 Difference]: Finished difference Result 20736 states and 54983 transitions. [2022-02-15 11:34:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-15 11:34:34,482 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 [2022-02-15 11:34:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:34,512 INFO L225 Difference]: With dead ends: 20736 [2022-02-15 11:34:34,512 INFO L226 Difference]: Without dead ends: 20245 [2022-02-15 11:34:34,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1349, Invalid=4351, Unknown=0, NotChecked=0, Total=5700 [2022-02-15 11:34:34,513 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1435 mSDsluCounter, 11628 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 11949 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:34,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 11949 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:34,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20245 states. [2022-02-15 11:34:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20245 to 8334. [2022-02-15 11:34:34,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-02-15 11:34:34,686 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-02-15 11:34:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:34,687 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-02-15 11:34:34,687 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) [2022-02-15 11:34:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-02-15 11:34:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:34,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:34,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:34,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-02-15 11:34:34,696 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:34,696 INFO L85 PathProgramCache]: Analyzing trace with hash 456235952, now seen corresponding path program 20 times [2022-02-15 11:34:34,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:34,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42366574] [2022-02-15 11:34:34,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:34,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:35,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:35,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42366574] [2022-02-15 11:34:35,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42366574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:35,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:35,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:35,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852397607] [2022-02-15 11:34:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:35,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:35,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:35,215 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 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) [2022-02-15 11:34:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:39,361 INFO L93 Difference]: Finished difference Result 20694 states and 54872 transitions. [2022-02-15 11:34:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:34:39,362 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 [2022-02-15 11:34:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:39,393 INFO L225 Difference]: With dead ends: 20694 [2022-02-15 11:34:39,393 INFO L226 Difference]: Without dead ends: 20202 [2022-02-15 11:34:39,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1295, Invalid=4557, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:34:39,394 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 1423 mSDsluCounter, 12233 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 12553 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:39,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 12553 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:39,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20202 states. [2022-02-15 11:34:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20202 to 8330. [2022-02-15 11:34:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-02-15 11:34:39,579 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-02-15 11:34:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:39,579 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-02-15 11:34:39,579 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) [2022-02-15 11:34:39,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-02-15 11:34:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:39,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:39,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:39,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-02-15 11:34:39,589 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash -664821388, now seen corresponding path program 21 times [2022-02-15 11:34:39,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:39,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425184749] [2022-02-15 11:34:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:39,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:40,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:40,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425184749] [2022-02-15 11:34:40,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425184749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:40,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:40,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:40,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407219204] [2022-02-15 11:34:40,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:40,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:40,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:40,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:40,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:40,217 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 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) [2022-02-15 11:34:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:44,991 INFO L93 Difference]: Finished difference Result 20862 states and 55314 transitions. [2022-02-15 11:34:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-15 11:34:44,992 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 [2022-02-15 11:34:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:45,019 INFO L225 Difference]: With dead ends: 20862 [2022-02-15 11:34:45,019 INFO L226 Difference]: Without dead ends: 20330 [2022-02-15 11:34:45,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1615, Invalid=5695, Unknown=0, NotChecked=0, Total=7310 [2022-02-15 11:34:45,020 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1546 mSDsluCounter, 11786 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:45,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1546 Valid, 12124 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:34:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2022-02-15 11:34:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 8326. [2022-02-15 11:34:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-02-15 11:34:45,176 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-02-15 11:34:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:45,176 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-02-15 11:34:45,176 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) [2022-02-15 11:34:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-02-15 11:34:45,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:45,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:45,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:45,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-02-15 11:34:45,186 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:45,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash -592191664, now seen corresponding path program 22 times [2022-02-15 11:34:45,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:45,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925867831] [2022-02-15 11:34:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:45,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:45,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:45,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925867831] [2022-02-15 11:34:45,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925867831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:45,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:45,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:45,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130974683] [2022-02-15 11:34:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:45,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:45,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:45,699 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 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) [2022-02-15 11:34:50,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:50,518 INFO L93 Difference]: Finished difference Result 20645 states and 54735 transitions. [2022-02-15 11:34:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-15 11:34:50,519 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 [2022-02-15 11:34:50,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:50,547 INFO L225 Difference]: With dead ends: 20645 [2022-02-15 11:34:50,547 INFO L226 Difference]: Without dead ends: 20111 [2022-02-15 11:34:50,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1633, Invalid=5009, Unknown=0, NotChecked=0, Total=6642 [2022-02-15 11:34:50,549 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1508 mSDsluCounter, 11676 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 12000 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:50,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 12000 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:34:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20111 states. [2022-02-15 11:34:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 8330. [2022-02-15 11:34:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.654700444231) internal successors, (22111), 8329 states have internal predecessors, (22111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22111 transitions. [2022-02-15 11:34:50,720 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22111 transitions. Word has length 153 [2022-02-15 11:34:50,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:50,721 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22111 transitions. [2022-02-15 11:34:50,721 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) [2022-02-15 11:34:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22111 transitions. [2022-02-15 11:34:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:50,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:50,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:50,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-02-15 11:34:50,730 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2144860282, now seen corresponding path program 23 times [2022-02-15 11:34:50,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:50,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503640205] [2022-02-15 11:34:50,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:50,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:51,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:51,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503640205] [2022-02-15 11:34:51,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503640205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:51,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:51,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:51,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382862942] [2022-02-15 11:34:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:51,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:51,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:51,284 INFO L87 Difference]: Start difference. First operand 8330 states and 22111 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) [2022-02-15 11:34:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:34:55,625 INFO L93 Difference]: Finished difference Result 20653 states and 54753 transitions. [2022-02-15 11:34:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:34:55,625 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 [2022-02-15 11:34:55,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:34:55,655 INFO L225 Difference]: With dead ends: 20653 [2022-02-15 11:34:55,655 INFO L226 Difference]: Without dead ends: 20162 [2022-02-15 11:34:55,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1391, Invalid=4461, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:34:55,656 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1466 mSDsluCounter, 11664 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 11987 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:34:55,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 11987 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:34:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20162 states. [2022-02-15 11:34:55,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20162 to 8334. [2022-02-15 11:34:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.654266170646826) internal successors, (22118), 8333 states have internal predecessors, (22118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:34:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22118 transitions. [2022-02-15 11:34:55,835 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22118 transitions. Word has length 153 [2022-02-15 11:34:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:34:55,835 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22118 transitions. [2022-02-15 11:34:55,835 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) [2022-02-15 11:34:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22118 transitions. [2022-02-15 11:34:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:34:55,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:34:55,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:34:55,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-02-15 11:34:55,845 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:34:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:34:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash -522583896, now seen corresponding path program 24 times [2022-02-15 11:34:55,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:34:55,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769811870] [2022-02-15 11:34:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:34:55,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:34:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:34:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:34:56,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:34:56,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769811870] [2022-02-15 11:34:56,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769811870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:34:56,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:34:56,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:34:56,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500461462] [2022-02-15 11:34:56,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:34:56,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:34:56,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:34:56,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:34:56,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:34:56,345 INFO L87 Difference]: Start difference. First operand 8334 states and 22118 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) [2022-02-15 11:35:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:00,130 INFO L93 Difference]: Finished difference Result 20603 states and 54620 transitions. [2022-02-15 11:35:00,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-15 11:35:00,130 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 [2022-02-15 11:35:00,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:00,157 INFO L225 Difference]: With dead ends: 20603 [2022-02-15 11:35:00,158 INFO L226 Difference]: Without dead ends: 20099 [2022-02-15 11:35:00,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1255, Invalid=4445, Unknown=0, NotChecked=0, Total=5700 [2022-02-15 11:35:00,158 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1414 mSDsluCounter, 10703 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 11055 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:00,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 11055 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20099 states. [2022-02-15 11:35:00,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20099 to 8318. [2022-02-15 11:35:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.655524828664182) internal successors, (22086), 8317 states have internal predecessors, (22086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22086 transitions. [2022-02-15 11:35:00,320 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22086 transitions. Word has length 153 [2022-02-15 11:35:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:00,320 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22086 transitions. [2022-02-15 11:35:00,320 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) [2022-02-15 11:35:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22086 transitions. [2022-02-15 11:35:00,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:00,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:00,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:00,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-02-15 11:35:00,329 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:00,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:00,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1782868580, now seen corresponding path program 25 times [2022-02-15 11:35:00,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:00,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850256399] [2022-02-15 11:35:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:00,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:00,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:00,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850256399] [2022-02-15 11:35:00,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850256399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:00,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:00,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:00,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118272367] [2022-02-15 11:35:00,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:00,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:00,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:00,894 INFO L87 Difference]: Start difference. First operand 8318 states and 22086 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) [2022-02-15 11:35:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:04,935 INFO L93 Difference]: Finished difference Result 20665 states and 54794 transitions. [2022-02-15 11:35:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-15 11:35:04,935 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 [2022-02-15 11:35:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:04,966 INFO L225 Difference]: With dead ends: 20665 [2022-02-15 11:35:04,966 INFO L226 Difference]: Without dead ends: 20174 [2022-02-15 11:35:04,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1271, Invalid=4131, Unknown=0, NotChecked=0, Total=5402 [2022-02-15 11:35:04,967 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1436 mSDsluCounter, 12201 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 12503 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:04,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 12503 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:35:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20174 states. [2022-02-15 11:35:05,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20174 to 8334. [2022-02-15 11:35:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-02-15 11:35:05,156 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-02-15 11:35:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:05,157 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-02-15 11:35:05,157 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) [2022-02-15 11:35:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-02-15 11:35:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:05,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:05,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:05,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-02-15 11:35:05,167 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:05,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash -155345462, now seen corresponding path program 26 times [2022-02-15 11:35:05,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:05,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007566556] [2022-02-15 11:35:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:05,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:05,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:05,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007566556] [2022-02-15 11:35:05,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007566556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:05,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:05,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:05,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675961708] [2022-02-15 11:35:05,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:05,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:05,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:05,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:05,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:05,678 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 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) [2022-02-15 11:35:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:09,742 INFO L93 Difference]: Finished difference Result 20643 states and 54738 transitions. [2022-02-15 11:35:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:35:09,742 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 [2022-02-15 11:35:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:09,773 INFO L225 Difference]: With dead ends: 20643 [2022-02-15 11:35:09,773 INFO L226 Difference]: Without dead ends: 20151 [2022-02-15 11:35:09,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1285, Invalid=4567, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:35:09,774 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1432 mSDsluCounter, 11798 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 12121 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:09,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 12121 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2022-02-15 11:35:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 8330. [2022-02-15 11:35:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-02-15 11:35:09,964 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-02-15 11:35:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-02-15 11:35:09,964 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) [2022-02-15 11:35:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-02-15 11:35:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:09,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:09,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:09,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-02-15 11:35:09,974 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:09,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1276402802, now seen corresponding path program 27 times [2022-02-15 11:35:09,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:09,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973316642] [2022-02-15 11:35:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:09,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:10,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:10,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973316642] [2022-02-15 11:35:10,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973316642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:10,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:10,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:10,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434572460] [2022-02-15 11:35:10,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:10,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:10,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:10,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:10,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:10,494 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 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) [2022-02-15 11:35:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:15,091 INFO L93 Difference]: Finished difference Result 20679 states and 54833 transitions. [2022-02-15 11:35:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:35:15,091 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 [2022-02-15 11:35:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:15,120 INFO L225 Difference]: With dead ends: 20679 [2022-02-15 11:35:15,120 INFO L226 Difference]: Without dead ends: 20147 [2022-02-15 11:35:15,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1643, Invalid=5839, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:35:15,121 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1507 mSDsluCounter, 11364 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 11709 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:15,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 11709 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20147 states. [2022-02-15 11:35:15,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20147 to 8326. [2022-02-15 11:35:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:15,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-02-15 11:35:15,288 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-02-15 11:35:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:15,289 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-02-15 11:35:15,289 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) [2022-02-15 11:35:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-02-15 11:35:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:15,298 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:15,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:15,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-02-15 11:35:15,298 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:15,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:15,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1801538338, now seen corresponding path program 28 times [2022-02-15 11:35:15,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:15,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780775291] [2022-02-15 11:35:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:15,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:15,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:15,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780775291] [2022-02-15 11:35:15,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780775291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:15,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:15,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:15,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203784468] [2022-02-15 11:35:15,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:15,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:15,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:15,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:15,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:15,799 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 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) [2022-02-15 11:35:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:21,139 INFO L93 Difference]: Finished difference Result 20715 states and 54928 transitions. [2022-02-15 11:35:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 11:35:21,139 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 [2022-02-15 11:35:21,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:21,171 INFO L225 Difference]: With dead ends: 20715 [2022-02-15 11:35:21,171 INFO L226 Difference]: Without dead ends: 20143 [2022-02-15 11:35:21,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2069, Invalid=7243, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 11:35:21,173 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1583 mSDsluCounter, 12077 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 12416 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:21,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 12416 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20143 states. [2022-02-15 11:35:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20143 to 8322. [2022-02-15 11:35:21,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.655089532508112) internal successors, (22093), 8321 states have internal predecessors, (22093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:21,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22093 transitions. [2022-02-15 11:35:21,369 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22093 transitions. Word has length 153 [2022-02-15 11:35:21,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:21,369 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22093 transitions. [2022-02-15 11:35:21,369 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) [2022-02-15 11:35:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22093 transitions. [2022-02-15 11:35:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:21,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:21,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:21,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-02-15 11:35:21,379 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1149245072, now seen corresponding path program 29 times [2022-02-15 11:35:21,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:21,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540631695] [2022-02-15 11:35:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:21,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:21,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:21,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540631695] [2022-02-15 11:35:21,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540631695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:21,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:21,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:21,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142027826] [2022-02-15 11:35:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:21,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:21,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:21,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:21,875 INFO L87 Difference]: Start difference. First operand 8322 states and 22093 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) [2022-02-15 11:35:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:27,993 INFO L93 Difference]: Finished difference Result 20711 states and 54913 transitions. [2022-02-15 11:35:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-15 11:35:27,993 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 [2022-02-15 11:35:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:28,027 INFO L225 Difference]: With dead ends: 20711 [2022-02-15 11:35:28,027 INFO L226 Difference]: Without dead ends: 20083 [2022-02-15 11:35:28,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2422 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2521, Invalid=8609, Unknown=0, NotChecked=0, Total=11130 [2022-02-15 11:35:28,029 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1673 mSDsluCounter, 11008 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 11377 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:28,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1673 Valid, 11377 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20083 states. [2022-02-15 11:35:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20083 to 8302. [2022-02-15 11:35:28,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 8301 states have (on average 2.656788338754367) internal successors, (22054), 8301 states have internal predecessors, (22054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:28,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 22054 transitions. [2022-02-15 11:35:28,292 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 22054 transitions. Word has length 153 [2022-02-15 11:35:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:28,293 INFO L470 AbstractCegarLoop]: Abstraction has 8302 states and 22054 transitions. [2022-02-15 11:35:28,293 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) [2022-02-15 11:35:28,293 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 22054 transitions. [2022-02-15 11:35:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:28,300 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:28,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:28,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-02-15 11:35:28,301 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1329374552, now seen corresponding path program 30 times [2022-02-15 11:35:28,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:28,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670920407] [2022-02-15 11:35:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:28,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:28,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:28,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670920407] [2022-02-15 11:35:28,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670920407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:28,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:28,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:28,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274741611] [2022-02-15 11:35:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:28,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:28,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:28,801 INFO L87 Difference]: Start difference. First operand 8302 states and 22054 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) [2022-02-15 11:35:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:32,654 INFO L93 Difference]: Finished difference Result 20531 states and 54450 transitions. [2022-02-15 11:35:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 11:35:32,654 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 [2022-02-15 11:35:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:32,684 INFO L225 Difference]: With dead ends: 20531 [2022-02-15 11:35:32,685 INFO L226 Difference]: Without dead ends: 20040 [2022-02-15 11:35:32,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1201, Invalid=3911, Unknown=0, NotChecked=0, Total=5112 [2022-02-15 11:35:32,685 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1450 mSDsluCounter, 11610 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 11927 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:32,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 11927 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20040 states. [2022-02-15 11:35:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20040 to 8334. [2022-02-15 11:35:32,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.656666266650666) internal successors, (22138), 8333 states have internal predecessors, (22138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22138 transitions. [2022-02-15 11:35:32,864 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22138 transitions. Word has length 153 [2022-02-15 11:35:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:32,864 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22138 transitions. [2022-02-15 11:35:32,864 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) [2022-02-15 11:35:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22138 transitions. [2022-02-15 11:35:32,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:32,873 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:32,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:32,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-02-15 11:35:32,873 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1338069626, now seen corresponding path program 31 times [2022-02-15 11:35:32,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:32,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670250411] [2022-02-15 11:35:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:32,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:33,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:33,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670250411] [2022-02-15 11:35:33,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670250411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:33,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:33,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:33,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663877145] [2022-02-15 11:35:33,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:33,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:33,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:33,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:33,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:33,414 INFO L87 Difference]: Start difference. First operand 8334 states and 22138 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) [2022-02-15 11:35:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:37,277 INFO L93 Difference]: Finished difference Result 20528 states and 54440 transitions. [2022-02-15 11:35:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:35:37,278 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 [2022-02-15 11:35:37,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:37,308 INFO L225 Difference]: With dead ends: 20528 [2022-02-15 11:35:37,308 INFO L226 Difference]: Without dead ends: 20036 [2022-02-15 11:35:37,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1277, Invalid=4575, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:35:37,309 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1491 mSDsluCounter, 11094 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 11430 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:37,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 11430 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20036 states. [2022-02-15 11:35:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20036 to 8330. [2022-02-15 11:35:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.656621443150438) internal successors, (22127), 8329 states have internal predecessors, (22127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22127 transitions. [2022-02-15 11:35:37,502 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22127 transitions. Word has length 153 [2022-02-15 11:35:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:37,502 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22127 transitions. [2022-02-15 11:35:37,502 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) [2022-02-15 11:35:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22127 transitions. [2022-02-15 11:35:37,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:37,512 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:37,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:37,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-02-15 11:35:37,512 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1835840330, now seen corresponding path program 32 times [2022-02-15 11:35:37,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:37,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784973329] [2022-02-15 11:35:37,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:37,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:38,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:38,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784973329] [2022-02-15 11:35:38,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784973329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:38,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:38,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:38,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196684900] [2022-02-15 11:35:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:38,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:38,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:38,019 INFO L87 Difference]: Start difference. First operand 8330 states and 22127 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) [2022-02-15 11:35:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:42,586 INFO L93 Difference]: Finished difference Result 20564 states and 54535 transitions. [2022-02-15 11:35:42,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:35:42,587 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 [2022-02-15 11:35:42,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:42,615 INFO L225 Difference]: With dead ends: 20564 [2022-02-15 11:35:42,616 INFO L226 Difference]: Without dead ends: 20032 [2022-02-15 11:35:42,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1623, Invalid=5859, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:35:42,617 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1574 mSDsluCounter, 11790 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:42,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 12120 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:42,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20032 states. [2022-02-15 11:35:42,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20032 to 8326. [2022-02-15 11:35:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6565765765765765) internal successors, (22116), 8325 states have internal predecessors, (22116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22116 transitions. [2022-02-15 11:35:42,803 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22116 transitions. Word has length 153 [2022-02-15 11:35:42,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:42,803 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22116 transitions. [2022-02-15 11:35:42,803 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) [2022-02-15 11:35:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22116 transitions. [2022-02-15 11:35:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:42,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:42,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:42,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-02-15 11:35:42,812 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:42,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1310704794, now seen corresponding path program 33 times [2022-02-15 11:35:42,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:42,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536087160] [2022-02-15 11:35:42,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:42,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:43,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:43,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536087160] [2022-02-15 11:35:43,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536087160] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:43,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:43,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:43,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806913633] [2022-02-15 11:35:43,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:43,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:43,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:43,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:43,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:43,327 INFO L87 Difference]: Start difference. First operand 8326 states and 22116 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) [2022-02-15 11:35:48,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:48,740 INFO L93 Difference]: Finished difference Result 20600 states and 54630 transitions. [2022-02-15 11:35:48,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 11:35:48,740 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 [2022-02-15 11:35:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:48,769 INFO L225 Difference]: With dead ends: 20600 [2022-02-15 11:35:48,769 INFO L226 Difference]: Without dead ends: 20028 [2022-02-15 11:35:48,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2037, Invalid=7275, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 11:35:48,770 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1644 mSDsluCounter, 12517 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 12839 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:48,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1644 Valid, 12839 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 11:35:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2022-02-15 11:35:48,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 8322. [2022-02-15 11:35:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.656531666866963) internal successors, (22105), 8321 states have internal predecessors, (22105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22105 transitions. [2022-02-15 11:35:48,953 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22105 transitions. Word has length 153 [2022-02-15 11:35:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:48,953 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22105 transitions. [2022-02-15 11:35:48,953 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) [2022-02-15 11:35:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22105 transitions. [2022-02-15 11:35:48,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:48,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:48,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-02-15 11:35:48,963 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1962998060, now seen corresponding path program 34 times [2022-02-15 11:35:48,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:48,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303193402] [2022-02-15 11:35:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:48,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:49,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:49,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303193402] [2022-02-15 11:35:49,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303193402] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:49,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:49,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:49,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87958346] [2022-02-15 11:35:49,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:49,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:49,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:49,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:49,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:49,542 INFO L87 Difference]: Start difference. First operand 8322 states and 22105 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) [2022-02-15 11:35:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:35:55,582 INFO L93 Difference]: Finished difference Result 20636 states and 54725 transitions. [2022-02-15 11:35:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-15 11:35:55,582 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 [2022-02-15 11:35:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:35:55,612 INFO L225 Difference]: With dead ends: 20636 [2022-02-15 11:35:55,612 INFO L226 Difference]: Without dead ends: 20024 [2022-02-15 11:35:55,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2506 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2525, Invalid=8817, Unknown=0, NotChecked=0, Total=11342 [2022-02-15 11:35:55,614 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1732 mSDsluCounter, 11492 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 11846 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:35:55,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 11846 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:35:55,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20024 states. [2022-02-15 11:35:55,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20024 to 8318. [2022-02-15 11:35:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.65648671395936) internal successors, (22094), 8317 states have internal predecessors, (22094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:35:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22094 transitions. [2022-02-15 11:35:55,798 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22094 transitions. Word has length 153 [2022-02-15 11:35:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:35:55,799 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22094 transitions. [2022-02-15 11:35:55,799 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) [2022-02-15 11:35:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22094 transitions. [2022-02-15 11:35:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:35:55,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:35:55,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:35:55,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-02-15 11:35:55,808 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:35:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:35:55,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1122284992, now seen corresponding path program 35 times [2022-02-15 11:35:55,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:35:55,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915640247] [2022-02-15 11:35:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:35:55,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:35:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:35:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:35:56,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:35:56,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915640247] [2022-02-15 11:35:56,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915640247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:35:56,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:35:56,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:35:56,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944156848] [2022-02-15 11:35:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:35:56,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:35:56,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:35:56,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:35:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:35:56,370 INFO L87 Difference]: Start difference. First operand 8318 states and 22094 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) [2022-02-15 11:36:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:03,314 INFO L93 Difference]: Finished difference Result 20752 states and 55032 transitions. [2022-02-15 11:36:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-15 11:36:03,315 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 [2022-02-15 11:36:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:03,341 INFO L225 Difference]: With dead ends: 20752 [2022-02-15 11:36:03,341 INFO L226 Difference]: Without dead ends: 20012 [2022-02-15 11:36:03,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3241 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3081, Invalid=10491, Unknown=0, NotChecked=0, Total=13572 [2022-02-15 11:36:03,343 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1848 mSDsluCounter, 11600 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 11961 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:03,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1848 Valid, 11961 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:03,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20012 states. [2022-02-15 11:36:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20012 to 8306. [2022-02-15 11:36:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8306 states, 8305 states have (on average 2.656351595424443) internal successors, (22061), 8305 states have internal predecessors, (22061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8306 states to 8306 states and 22061 transitions. [2022-02-15 11:36:03,508 INFO L78 Accepts]: Start accepts. Automaton has 8306 states and 22061 transitions. Word has length 153 [2022-02-15 11:36:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:03,508 INFO L470 AbstractCegarLoop]: Abstraction has 8306 states and 22061 transitions. [2022-02-15 11:36:03,508 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) [2022-02-15 11:36:03,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8306 states and 22061 transitions. [2022-02-15 11:36:03,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:03,518 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:03,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:03,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-02-15 11:36:03,518 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1864894446, now seen corresponding path program 36 times [2022-02-15 11:36:03,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:03,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185957987] [2022-02-15 11:36:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:03,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:04,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:04,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185957987] [2022-02-15 11:36:04,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185957987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:04,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:04,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:04,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208754098] [2022-02-15 11:36:04,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:04,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:04,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:04,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:04,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:04,054 INFO L87 Difference]: Start difference. First operand 8306 states and 22061 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) [2022-02-15 11:36:11,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:11,551 INFO L93 Difference]: Finished difference Result 20555 states and 54505 transitions. [2022-02-15 11:36:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-15 11:36:11,552 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 [2022-02-15 11:36:11,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:11,581 INFO L225 Difference]: With dead ends: 20555 [2022-02-15 11:36:11,581 INFO L226 Difference]: Without dead ends: 19727 [2022-02-15 11:36:11,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3617 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=3491, Invalid=11271, Unknown=0, NotChecked=0, Total=14762 [2022-02-15 11:36:11,583 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1942 mSDsluCounter, 10984 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 11354 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:11,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 11354 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19727 states. [2022-02-15 11:36:11,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19727 to 8246. [2022-02-15 11:36:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8245 states have (on average 2.6566403881140084) internal successors, (21904), 8245 states have internal predecessors, (21904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 21904 transitions. [2022-02-15 11:36:11,769 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 21904 transitions. Word has length 153 [2022-02-15 11:36:11,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:11,769 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 21904 transitions. [2022-02-15 11:36:11,769 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) [2022-02-15 11:36:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 21904 transitions. [2022-02-15 11:36:11,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:11,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:11,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:11,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-02-15 11:36:11,779 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:11,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:11,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1387274738, now seen corresponding path program 37 times [2022-02-15 11:36:11,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:11,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846482636] [2022-02-15 11:36:11,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:11,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:12,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:12,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846482636] [2022-02-15 11:36:12,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846482636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:12,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:12,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:12,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390508571] [2022-02-15 11:36:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:12,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:12,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:12,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:12,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:12,285 INFO L87 Difference]: Start difference. First operand 8246 states and 21904 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) [2022-02-15 11:36:16,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:16,197 INFO L93 Difference]: Finished difference Result 21210 states and 56290 transitions. [2022-02-15 11:36:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 11:36:16,197 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 [2022-02-15 11:36:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:16,229 INFO L225 Difference]: With dead ends: 21210 [2022-02-15 11:36:16,229 INFO L226 Difference]: Without dead ends: 20719 [2022-02-15 11:36:16,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1239, Invalid=4017, Unknown=0, NotChecked=0, Total=5256 [2022-02-15 11:36:16,229 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1452 mSDsluCounter, 11429 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 11736 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:16,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 11736 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:16,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20719 states. [2022-02-15 11:36:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20719 to 8294. [2022-02-15 11:36:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8294 states, 8293 states have (on average 2.6566984203545156) internal successors, (22032), 8293 states have internal predecessors, (22032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:16,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8294 states to 8294 states and 22032 transitions. [2022-02-15 11:36:16,398 INFO L78 Accepts]: Start accepts. Automaton has 8294 states and 22032 transitions. Word has length 153 [2022-02-15 11:36:16,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:16,398 INFO L470 AbstractCegarLoop]: Abstraction has 8294 states and 22032 transitions. [2022-02-15 11:36:16,398 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) [2022-02-15 11:36:16,398 INFO L276 IsEmpty]: Start isEmpty. Operand 8294 states and 22032 transitions. [2022-02-15 11:36:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:16,407 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:16,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:16,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-02-15 11:36:16,407 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:16,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:16,408 INFO L85 PathProgramCache]: Analyzing trace with hash 240248380, now seen corresponding path program 38 times [2022-02-15 11:36:16,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:16,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258292137] [2022-02-15 11:36:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:16,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:16,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:16,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258292137] [2022-02-15 11:36:16,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258292137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:16,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:16,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:16,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962190315] [2022-02-15 11:36:16,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:16,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:16,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:16,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:16,974 INFO L87 Difference]: Start difference. First operand 8294 states and 22032 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) [2022-02-15 11:36:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:20,917 INFO L93 Difference]: Finished difference Result 21188 states and 56234 transitions. [2022-02-15 11:36:20,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 11:36:20,918 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 [2022-02-15 11:36:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:20,949 INFO L225 Difference]: With dead ends: 21188 [2022-02-15 11:36:20,950 INFO L226 Difference]: Without dead ends: 20696 [2022-02-15 11:36:20,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1294, Invalid=4558, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 11:36:20,951 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1450 mSDsluCounter, 10384 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 10736 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:20,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 10736 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20696 states. [2022-02-15 11:36:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20696 to 8290. [2022-02-15 11:36:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8290 states, 8289 states have (on average 2.656653396067077) internal successors, (22021), 8289 states have internal predecessors, (22021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 22021 transitions. [2022-02-15 11:36:21,141 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 22021 transitions. Word has length 153 [2022-02-15 11:36:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:21,141 INFO L470 AbstractCegarLoop]: Abstraction has 8290 states and 22021 transitions. [2022-02-15 11:36:21,142 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) [2022-02-15 11:36:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 22021 transitions. [2022-02-15 11:36:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:21,151 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:21,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:21,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-02-15 11:36:21,151 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -880808960, now seen corresponding path program 39 times [2022-02-15 11:36:21,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:21,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492923038] [2022-02-15 11:36:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:21,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:21,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:21,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492923038] [2022-02-15 11:36:21,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492923038] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:21,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:21,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:21,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774891017] [2022-02-15 11:36:21,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:21,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:21,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:21,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:21,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:21,704 INFO L87 Difference]: Start difference. First operand 8290 states and 22021 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) [2022-02-15 11:36:26,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:26,447 INFO L93 Difference]: Finished difference Result 21224 states and 56329 transitions. [2022-02-15 11:36:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 11:36:26,447 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 [2022-02-15 11:36:26,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:26,479 INFO L225 Difference]: With dead ends: 21224 [2022-02-15 11:36:26,479 INFO L226 Difference]: Without dead ends: 20692 [2022-02-15 11:36:26,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1649, Invalid=5833, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 11:36:26,481 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1525 mSDsluCounter, 11095 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 11440 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 [2022-02-15 11:36:26,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 11440 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-02-15 11:36:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8286. [2022-02-15 11:36:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.656608328304164) internal successors, (22010), 8285 states have internal predecessors, (22010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 22010 transitions. [2022-02-15 11:36:26,673 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 22010 transitions. Word has length 153 [2022-02-15 11:36:26,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:26,673 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 22010 transitions. [2022-02-15 11:36:26,673 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) [2022-02-15 11:36:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 22010 transitions. [2022-02-15 11:36:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:26,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:26,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:26,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-02-15 11:36:26,683 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:26,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1405944496, now seen corresponding path program 40 times [2022-02-15 11:36:26,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:26,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859670673] [2022-02-15 11:36:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:26,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:27,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:27,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859670673] [2022-02-15 11:36:27,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859670673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:27,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:27,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:27,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007720510] [2022-02-15 11:36:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:27,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:27,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:27,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:27,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:27,227 INFO L87 Difference]: Start difference. First operand 8286 states and 22010 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) [2022-02-15 11:36:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 11:36:32,765 INFO L93 Difference]: Finished difference Result 21260 states and 56424 transitions. [2022-02-15 11:36:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 11:36:32,765 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 [2022-02-15 11:36:32,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 11:36:32,792 INFO L225 Difference]: With dead ends: 21260 [2022-02-15 11:36:32,792 INFO L226 Difference]: Without dead ends: 20688 [2022-02-15 11:36:32,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1878 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2074, Invalid=7238, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 11:36:32,793 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1597 mSDsluCounter, 11235 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 11587 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:32,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1597 Valid, 11587 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 11:36:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20688 states. [2022-02-15 11:36:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20688 to 8282. [2022-02-15 11:36:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6565632170027773) internal successors, (21999), 8281 states have internal predecessors, (21999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-15 11:36:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21999 transitions. [2022-02-15 11:36:32,958 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21999 transitions. Word has length 153 [2022-02-15 11:36:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 11:36:32,959 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21999 transitions. [2022-02-15 11:36:32,959 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) [2022-02-15 11:36:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21999 transitions. [2022-02-15 11:36:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 11:36:32,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 11:36:32,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:32,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-02-15 11:36:32,968 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 11:36:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 11:36:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash -753651230, now seen corresponding path program 41 times [2022-02-15 11:36:32,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 11:36:32,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343342191] [2022-02-15 11:36:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 11:36:32,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 11:36:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 11:36:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 11:36:33,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 11:36:33,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343342191] [2022-02-15 11:36:33,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343342191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 11:36:33,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 11:36:33,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 11:36:33,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983004492] [2022-02-15 11:36:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 11:36:33,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 11:36:33,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 11:36:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 11:36:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-15 11:36:33,513 INFO L87 Difference]: Start difference. First operand 8282 states and 21999 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... [2022-02-15 11:36:39,297 WARN L244 SmtUtils]: Removed 7 from assertion stack [2022-02-15 11:36:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-15 11:36:39,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2107 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2369, Invalid=7333, Unknown=0, NotChecked=0, Total=9702 [2022-02-15 11:36:39,299 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1263 mSDsluCounter, 10497 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 10860 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 11:36:39,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 10860 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 11:36:39,300 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-15 11:36:39,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-02-15 11:36:39,300 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (8282states) and FLOYD_HOARE automaton (currently 72 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 61 for 85ms.. [2022-02-15 11:36:39,302 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-15 11:36:39,303 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-15 11:36:39,306 INFO L732 BasicCegarLoop]: Path program histogram: [252, 252, 41, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 11:36:39,307 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 11:36:39,308 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 11:36:39,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:36:39 BasicIcfg [2022-02-15 11:36:39,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 11:36:39,310 INFO L158 Benchmark]: Toolchain (without parser) took 691048.97ms. Allocated memory was 177.2MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 121.6MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-02-15 11:36:39,310 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 11:36:39,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.63ms. Allocated memory was 177.2MB in the beginning and 265.3MB in the end (delta: 88.1MB). Free memory was 121.4MB in the beginning and 235.6MB in the end (delta: -114.2MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-02-15 11:36:39,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.55ms. Allocated memory is still 265.3MB. Free memory was 235.6MB in the beginning and 234.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 11:36:39,310 INFO L158 Benchmark]: Boogie Preprocessor took 40.81ms. Allocated memory is still 265.3MB. Free memory was 233.5MB in the beginning and 232.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 11:36:39,302 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 [2022-02-15 11:36:39,310 INFO L158 Benchmark]: RCFGBuilder took 531.82ms. Allocated memory is still 265.3MB. Free memory was 232.4MB in the beginning and 215.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-02-15 11:36:39,310 INFO L158 Benchmark]: TraceAbstraction took 690173.62ms. Allocated memory was 265.3MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 215.1MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2022-02-15 11:36:39,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 241.63ms. Allocated memory was 177.2MB in the beginning and 265.3MB in the end (delta: 88.1MB). Free memory was 121.4MB in the beginning and 235.6MB in the end (delta: -114.2MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.55ms. Allocated memory is still 265.3MB. Free memory was 235.6MB in the beginning and 234.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.81ms. Allocated memory is still 265.3MB. Free memory was 233.5MB in the beginning and 232.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 531.82ms. Allocated memory is still 265.3MB. Free memory was 232.4MB in the beginning and 215.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 690173.62ms. Allocated memory was 265.3MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 215.1MB in the beginning and 2.3GB in the end (delta: -2.1GB). Peak memory consumption was 1.7GB. 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 (8282states) and FLOYD_HOARE automaton (currently 72 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 61 for 85ms.. - 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 (8282states) and FLOYD_HOARE automaton (currently 72 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 61 for 85ms.. - 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 (8282states) and FLOYD_HOARE automaton (currently 72 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 61 for 85ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 300 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 690.0s, OverallIterations: 595, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 6.7s, AutomataDifference: 512.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219050 SdHoareTripleChecker+Valid, 114.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219050 mSDsluCounter, 2099374 SdHoareTripleChecker+Invalid, 95.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1955478 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284421 IncrementalHoareTripleChecker+Invalid, 284501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 184574 mSDtfsCounter, 284421 mSolverCounterSat, 2.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37497 GetRequests, 12354 SyntacticMatches, 0 SemanticMatches, 25142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267668 ImplicationChecksByTransitivity, 403.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11777occurred in iteration=0, InterpolantAutomatonStates: 20695, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 79.4s AutomataMinimizationTime, 594 MinimizatonAttempts, 1199853 StatesRemovedByMinimization, 590 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 84.2s InterpolantComputationTime, 66299 NumberOfCodeBlocks, 66299 NumberOfCodeBlocksAsserted, 595 NumberOfCheckSat, 65704 ConstructedInterpolants, 0 QuantifiedInterpolants, 321004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 595 InterpolantComputations, 595 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